21419923

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{233}}^1\times {\mathrm{571}}^1$

素因数の和:834

約数の個数: 16

約数和(自身を含む): 25698816

約数和(自身を除く): 4278893

約数列:

[1, 7, 23, 161, 233, 571, 1631, 3997, 5359, 13133, 37513, 91931, 133043, 931301, 3059989, 21419923]

約数ペア:

[(1, 21419923), (7, 3059989), (23, 931301), (161, 133043), (233, 91931), (571, 37513), (1631, 13133), (3997, 5359)]