21527144

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1423}}^1$

素因数の和:1521

約数の個数: 32

約数和(自身を含む): 42378240

約数和(自身を除く): 20851096

約数列:

[1, 2, 4, 8, 31, 61, 62, 122, 124, 244, 248, 488, 1423, 1891, 2846, 3782, 5692, 7564, 11384, 15128, 44113, 86803, 88226, 173606, 176452, 347212, 352904, 694424, 2690893, 5381786, 10763572, 21527144]

約数ペア:

[(1, 21527144), (2, 10763572), (4, 5381786), (8, 2690893), (31, 694424), (61, 352904), (62, 347212), (122, 176452), (124, 173606), (244, 88226), (248, 86803), (488, 44113), (1423, 15128), (1891, 11384), (2846, 7564), (3782, 5692)]