28911621

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{6869}}^1$

素因数の和:6956

約数の個数: 16

約数和(自身を含む): 40890240

約数和(自身を除く): 11978619

約数列:

[1, 3, 23, 61, 69, 183, 1403, 4209, 6869, 20607, 157987, 419009, 473961, 1257027, 9637207, 28911621]

約数ペア:

[(1, 28911621), (3, 9637207), (23, 1257027), (61, 473961), (69, 419009), (183, 157987), (1403, 20607), (4209, 6869)]