19721533

素因数分解:

${\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{227}}^1$

素因数の和:444

約数の個数: 16

約数和(自身を含む): 21986496

約数和(自身を除く): 2264963

約数列:

[1, 13, 41, 163, 227, 533, 2119, 2951, 6683, 9307, 37001, 86879, 120991, 481013, 1517041, 19721533]

約数ペア:

[(1, 19721533), (13, 1517041), (41, 481013), (163, 120991), (227, 86879), (533, 37001), (2119, 9307), (2951, 6683)]