20123362791

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{307}}^1\times {\mathrm{887}}^1$

素因数の和:1250

約数の個数: 128

約数和(自身を含む): 37809192960

約数和(自身を除く): 17685830169

約数列:

[1, 3, 7, 9, 17, 21, 23, 27, 51, 63, 69, 119, 153, 161, 189, 207, 307, 357, 391, 459, 483, 621, 887, 921, 1071, 1173, 1449, 2149, 2661, 2737, 2763, 3213, 3519, 4347, 5219, 6209, 6447, 7061, 7983, 8211, 8289, 10557, 15079, 15657, 18627, 19341, 20401, 21183, 23949, 24633, 36533, 45237, 46971, 49427, 55881, 58023, 61203, 63549, 73899, 105553, 109599, 120037, 135711, 140913, 142807, 148281, 167643, 183609, 190647, 272309, 316659, 328797, 346817, 360111, 407133, 428421, 444843, 550827, 816927, 840259, 949977, 986391, 1040451, 1080333, 1285263, 1334529, 1906163, 2427719, 2450781, 2520777, 2849931, 3121353, 3240999, 3855789, 4629253, 5718489, 6263107, 7283157, 7352343, 7562331, 9364059, 13887759, 17155467, 18789321, 21849471, 22686993, 32404771, 41663277, 43841749, 51466401, 56367963, 65548413, 97214313, 106472819, 124989831, 131525247, 169103889, 291642939, 319418457, 394575741, 745309733, 874928817, 958255371, 1183727223, 2235929199, 2874766113, 6707787597, 20123362791]

約数ペア:

[(1, 20123362791), (3, 6707787597), (7, 2874766113), (9, 2235929199), (17, 1183727223), (21, 958255371), (23, 874928817), (27, 745309733), (51, 394575741), (63, 319418457), (69, 291642939), (119, 169103889), (153, 131525247), (161, 124989831), (189, 106472819), (207, 97214313), (307, 65548413), (357, 56367963), (391, 51466401), (459, 43841749), (483, 41663277), (621, 32404771), (887, 22686993), (921, 21849471), (1071, 18789321), (1173, 17155467), (1449, 13887759), (2149, 9364059), (2661, 7562331), (2737, 7352343), (2763, 7283157), (3213, 6263107), (3519, 5718489), (4347, 4629253), (5219, 3855789), (6209, 3240999), (6447, 3121353), (7061, 2849931), (7983, 2520777), (8211, 2450781), (8289, 2427719), (10557, 1906163), (15079, 1334529), (15657, 1285263), (18627, 1080333), (19341, 1040451), (20401, 986391), (21183, 949977), (23949, 840259), (24633, 816927), (36533, 550827), (45237, 444843), (46971, 428421), (49427, 407133), (55881, 360111), (58023, 346817), (61203, 328797), (63549, 316659), (73899, 272309), (105553, 190647), (109599, 183609), (120037, 167643), (135711, 148281), (140913, 142807)]