21531624

素因数分解:

$2^3\times 3^1\times {\mathrm{421}}^1\times {\mathrm{2131}}^1$

素因数の和:2561

約数の個数: 32

約数和(自身を含む): 53982240

約数和(自身を除く): 32450616

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 421, 842, 1263, 1684, 2131, 2526, 3368, 4262, 5052, 6393, 8524, 10104, 12786, 17048, 25572, 51144, 897151, 1794302, 2691453, 3588604, 5382906, 7177208, 10765812, 21531624]

約数ペア:

[(1, 21531624), (2, 10765812), (3, 7177208), (4, 5382906), (6, 3588604), (8, 2691453), (12, 1794302), (24, 897151), (421, 51144), (842, 25572), (1263, 17048), (1684, 12786), (2131, 10104), (2526, 8524), (3368, 6393), (4262, 5052)]