21112406

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{349}}^1$

素因数の和:536

約数の個数: 32

約数和(自身を含む): 37800000

約数和(自身を除く): 16687594

約数列:

[1, 2, 7, 14, 29, 58, 149, 203, 298, 349, 406, 698, 1043, 2086, 2443, 4321, 4886, 8642, 10121, 20242, 30247, 52001, 60494, 70847, 104002, 141694, 364007, 728014, 1508029, 3016058, 10556203, 21112406]

約数ペア:

[(1, 21112406), (2, 10556203), (7, 3016058), (14, 1508029), (29, 728014), (58, 364007), (149, 141694), (203, 104002), (298, 70847), (349, 60494), (406, 52001), (698, 30247), (1043, 20242), (2086, 10121), (2443, 8642), (4321, 4886)]