21247454872

素因数分解:

$2^3\times 7^2\times {\mathrm{89}}^1\times {\mathrm{131}}^1\times {\mathrm{4649}}^1$

素因数の和:4889

約数の個数: 96

約数和(自身を含む): 47231910000

約数和(自身を除く): 25984455128

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 89, 98, 131, 178, 196, 262, 356, 392, 524, 623, 712, 917, 1048, 1246, 1834, 2492, 3668, 4361, 4649, 4984, 6419, 7336, 8722, 9298, 11659, 12838, 17444, 18596, 23318, 25676, 32543, 34888, 37192, 46636, 51352, 65086, 81613, 93272, 130172, 163226, 227801, 260344, 326452, 413761, 455602, 571291, 609019, 652904, 827522, 911204, 1142582, 1218038, 1655044, 1822408, 2285164, 2436076, 2896327, 3310088, 4263133, 4570328, 4872152, 5792654, 8526266, 11585308, 17052532, 20274289, 23170616, 29841931, 34105064, 40548578, 54202691, 59683862, 81097156, 108405382, 119367724, 162194312, 216810764, 238735448, 379418837, 433621528, 758837674, 1517675348, 2655931859, 3035350696, 5311863718, 10623727436, 21247454872]

約数ペア:

[(1, 21247454872), (2, 10623727436), (4, 5311863718), (7, 3035350696), (8, 2655931859), (14, 1517675348), (28, 758837674), (49, 433621528), (56, 379418837), (89, 238735448), (98, 216810764), (131, 162194312), (178, 119367724), (196, 108405382), (262, 81097156), (356, 59683862), (392, 54202691), (524, 40548578), (623, 34105064), (712, 29841931), (917, 23170616), (1048, 20274289), (1246, 17052532), (1834, 11585308), (2492, 8526266), (3668, 5792654), (4361, 4872152), (4649, 4570328), (4984, 4263133), (6419, 3310088), (7336, 2896327), (8722, 2436076), (9298, 2285164), (11659, 1822408), (12838, 1655044), (17444, 1218038), (18596, 1142582), (23318, 911204), (25676, 827522), (32543, 652904), (34888, 609019), (37192, 571291), (46636, 455602), (51352, 413761), (65086, 326452), (81613, 260344), (93272, 227801), (130172, 163226)]