21960368

素因数分解:

$2^4\times {\mathrm{181}}^1\times {\mathrm{7583}}^1$

素因数の和:7772

約数の個数: 20

約数和(自身を含む): 42788928

約数和(自身を除く): 20828560

約数列:

[1, 2, 4, 8, 16, 181, 362, 724, 1448, 2896, 7583, 15166, 30332, 60664, 121328, 1372523, 2745046, 5490092, 10980184, 21960368]

約数ペア:

[(1, 21960368), (2, 10980184), (4, 5490092), (8, 2745046), (16, 1372523), (181, 121328), (362, 60664), (724, 30332), (1448, 15166), (2896, 7583)]