21661048

素因数分解:

$2^3\times {\mathrm{239}}^1\times {\mathrm{11329}}^1$

素因数の和:11574

約数の個数: 16

約数和(自身を含む): 40788000

約数和(自身を除く): 19126952

約数列:

[1, 2, 4, 8, 239, 478, 956, 1912, 11329, 22658, 45316, 90632, 2707631, 5415262, 10830524, 21661048]

約数ペア:

[(1, 21661048), (2, 10830524), (4, 5415262), (8, 2707631), (239, 90632), (478, 45316), (956, 22658), (1912, 11329)]