21906948

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{29}}^1$

素因数の和:106

約数の個数: 144

約数和(自身を含む): 66890880

約数和(自身を除く): 44983932

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 23, 28, 29, 34, 42, 46, 51, 58, 68, 69, 84, 87, 92, 102, 116, 119, 138, 161, 174, 203, 204, 238, 276, 322, 348, 357, 391, 406, 476, 483, 493, 529, 609, 644, 667, 714, 782, 812, 966, 986, 1058, 1173, 1218, 1334, 1428, 1479, 1564, 1587, 1932, 1972, 2001, 2116, 2346, 2436, 2668, 2737, 2958, 3174, 3451, 3703, 4002, 4669, 4692, 5474, 5916, 6348, 6902, 7406, 8004, 8211, 8993, 9338, 10353, 10948, 11109, 11339, 13804, 14007, 14812, 15341, 16422, 17986, 18676, 20706, 22218, 22678, 26979, 28014, 30682, 32844, 34017, 35972, 41412, 44436, 45356, 46023, 53958, 56028, 61364, 62951, 68034, 79373, 92046, 107387, 107916, 125902, 136068, 158746, 184092, 188853, 214774, 238119, 251804, 260797, 317492, 322161, 377706, 429548, 476238, 521594, 644322, 755412, 782391, 952476, 1043188, 1288644, 1564782, 1825579, 3129564, 3651158, 5476737, 7302316, 10953474, 21906948]

約数ペア:

[(1, 21906948), (2, 10953474), (3, 7302316), (4, 5476737), (6, 3651158), (7, 3129564), (12, 1825579), (14, 1564782), (17, 1288644), (21, 1043188), (23, 952476), (28, 782391), (29, 755412), (34, 644322), (42, 521594), (46, 476238), (51, 429548), (58, 377706), (68, 322161), (69, 317492), (84, 260797), (87, 251804), (92, 238119), (102, 214774), (116, 188853), (119, 184092), (138, 158746), (161, 136068), (174, 125902), (203, 107916), (204, 107387), (238, 92046), (276, 79373), (322, 68034), (348, 62951), (357, 61364), (391, 56028), (406, 53958), (476, 46023), (483, 45356), (493, 44436), (529, 41412), (609, 35972), (644, 34017), (667, 32844), (714, 30682), (782, 28014), (812, 26979), (966, 22678), (986, 22218), (1058, 20706), (1173, 18676), (1218, 17986), (1334, 16422), (1428, 15341), (1479, 14812), (1564, 14007), (1587, 13804), (1932, 11339), (1972, 11109), (2001, 10948), (2116, 10353), (2346, 9338), (2436, 8993), (2668, 8211), (2737, 8004), (2958, 7406), (3174, 6902), (3451, 6348), (3703, 5916), (4002, 5474), (4669, 4692)]