20121567501

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{239}}^1\times {\mathrm{1129}}^1$

素因数の和:1498

約数の個数: 64

約数和(自身を含む): 31867084800

約数和(自身を除く): 11745517299

約数列:

[1, 3, 7, 21, 53, 67, 159, 201, 239, 371, 469, 717, 1113, 1129, 1407, 1673, 3387, 3551, 5019, 7903, 10653, 12667, 16013, 23709, 24857, 38001, 48039, 59837, 74571, 75643, 88669, 112091, 179511, 226929, 266007, 269831, 336273, 418859, 529501, 809493, 848689, 1256577, 1588503, 1888817, 2546067, 4009079, 5666451, 5940823, 12027237, 14301043, 17822469, 18078677, 28063553, 42903129, 54236031, 84190659, 100107301, 126550739, 300321903, 379652217, 958169881, 2874509643, 6707189167, 20121567501]

約数ペア:

[(1, 20121567501), (3, 6707189167), (7, 2874509643), (21, 958169881), (53, 379652217), (67, 300321903), (159, 126550739), (201, 100107301), (239, 84190659), (371, 54236031), (469, 42903129), (717, 28063553), (1113, 18078677), (1129, 17822469), (1407, 14301043), (1673, 12027237), (3387, 5940823), (3551, 5666451), (5019, 4009079), (7903, 2546067), (10653, 1888817), (12667, 1588503), (16013, 1256577), (23709, 848689), (24857, 809493), (38001, 529501), (48039, 418859), (59837, 336273), (74571, 269831), (75643, 266007), (88669, 226929), (112091, 179511)]