21021027

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{233}}^1$

素因数の和:343

約数の個数: 32

約数和(自身を含む): 31337280

約数和(自身を除く): 10316253

約数列:

[1, 3, 17, 29, 51, 61, 87, 183, 233, 493, 699, 1037, 1479, 1769, 3111, 3961, 5307, 6757, 11883, 14213, 20271, 30073, 42639, 90219, 114869, 241621, 344607, 412177, 724863, 1236531, 7007009, 21021027]

約数ペア:

[(1, 21021027), (3, 7007009), (17, 1236531), (29, 724863), (51, 412177), (61, 344607), (87, 241621), (183, 114869), (233, 90219), (493, 42639), (699, 30073), (1037, 20271), (1479, 14213), (1769, 11883), (3111, 6757), (3961, 5307)]