20914236

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{557}}^1$

素因数の和:723

約数の個数: 72

約数和(自身を含む): 60933600

約数和(自身を除く): 40019364

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 149, 252, 298, 447, 557, 596, 894, 1043, 1114, 1341, 1671, 1788, 2086, 2228, 2682, 3129, 3342, 3899, 4172, 5013, 5364, 6258, 6684, 7798, 9387, 10026, 11697, 12516, 15596, 18774, 20052, 23394, 35091, 37548, 46788, 70182, 82993, 140364, 165986, 248979, 331972, 497958, 580951, 746937, 995916, 1161902, 1493874, 1742853, 2323804, 2987748, 3485706, 5228559, 6971412, 10457118, 20914236]

約数ペア:

[(1, 20914236), (2, 10457118), (3, 6971412), (4, 5228559), (6, 3485706), (7, 2987748), (9, 2323804), (12, 1742853), (14, 1493874), (18, 1161902), (21, 995916), (28, 746937), (36, 580951), (42, 497958), (63, 331972), (84, 248979), (126, 165986), (149, 140364), (252, 82993), (298, 70182), (447, 46788), (557, 37548), (596, 35091), (894, 23394), (1043, 20052), (1114, 18774), (1341, 15596), (1671, 12516), (1788, 11697), (2086, 10026), (2228, 9387), (2682, 7798), (3129, 6684), (3342, 6258), (3899, 5364), (4172, 5013)]