21977201428

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{8429}}^1$

素因数の和:8514

約数の個数: 144

約数和(自身を含む): 51834384000

約数和(自身を除く): 29857182572

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 29, 38, 52, 58, 76, 91, 116, 133, 169, 182, 203, 247, 266, 338, 364, 377, 406, 494, 532, 551, 676, 754, 812, 988, 1102, 1183, 1508, 1729, 2204, 2366, 2639, 3211, 3458, 3857, 4732, 4901, 5278, 6422, 6916, 7163, 7714, 8429, 9802, 10556, 12844, 14326, 15428, 16858, 19604, 22477, 28652, 33716, 34307, 44954, 50141, 59003, 68614, 89908, 93119, 100282, 109577, 118006, 137228, 160151, 186238, 200564, 219154, 236012, 244441, 320302, 372476, 438308, 488882, 640604, 651833, 767039, 977764, 1121057, 1303666, 1424501, 1534078, 1711087, 2081963, 2242114, 2607332, 2849002, 3068156, 3177733, 3422174, 4163926, 4484228, 4644379, 5698004, 6355466, 6844348, 8327852, 9288758, 9971507, 12710932, 14573741, 18577516, 19943014, 22244131, 27065519, 29147482, 32510653, 39886028, 41310529, 44488262, 54131038, 58294964, 60376927, 65021306, 82621058, 88976524, 108262076, 120753854, 130042612, 165242116, 189458633, 241507708, 289173703, 378917266, 422638489, 578347406, 757834532, 784900051, 845276978, 1156694812, 1569800102, 1690553956, 3139600204, 5494300357, 10988600714, 21977201428]

約数ペア:

[(1, 21977201428), (2, 10988600714), (4, 5494300357), (7, 3139600204), (13, 1690553956), (14, 1569800102), (19, 1156694812), (26, 845276978), (28, 784900051), (29, 757834532), (38, 578347406), (52, 422638489), (58, 378917266), (76, 289173703), (91, 241507708), (116, 189458633), (133, 165242116), (169, 130042612), (182, 120753854), (203, 108262076), (247, 88976524), (266, 82621058), (338, 65021306), (364, 60376927), (377, 58294964), (406, 54131038), (494, 44488262), (532, 41310529), (551, 39886028), (676, 32510653), (754, 29147482), (812, 27065519), (988, 22244131), (1102, 19943014), (1183, 18577516), (1508, 14573741), (1729, 12710932), (2204, 9971507), (2366, 9288758), (2639, 8327852), (3211, 6844348), (3458, 6355466), (3857, 5698004), (4732, 4644379), (4901, 4484228), (5278, 4163926), (6422, 3422174), (6916, 3177733), (7163, 3068156), (7714, 2849002), (8429, 2607332), (9802, 2242114), (10556, 2081963), (12844, 1711087), (14326, 1534078), (15428, 1424501), (16858, 1303666), (19604, 1121057), (22477, 977764), (28652, 767039), (33716, 651833), (34307, 640604), (44954, 488882), (50141, 438308), (59003, 372476), (68614, 320302), (89908, 244441), (93119, 236012), (100282, 219154), (109577, 200564), (118006, 186238), (137228, 160151)]