21237628

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{223}}^1\times {\mathrm{821}}^1$

素因数の和:1077

約数の個数: 24

約数和(自身を含む): 38666880

約数和(自身を除く): 17429252

約数列:

[1, 2, 4, 29, 58, 116, 223, 446, 821, 892, 1642, 3284, 6467, 12934, 23809, 25868, 47618, 95236, 183083, 366166, 732332, 5309407, 10618814, 21237628]

約数ペア:

[(1, 21237628), (2, 10618814), (4, 5309407), (29, 732332), (58, 366166), (116, 183083), (223, 95236), (446, 47618), (821, 25868), (892, 23809), (1642, 12934), (3284, 6467)]