21385226

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{2633}}^1$

素因数の和:2797

約数の個数: 16

約数和(自身を含む): 33378048

約数和(自身を除く): 11992822

約数列:

[1, 2, 31, 62, 131, 262, 2633, 4061, 5266, 8122, 81623, 163246, 344923, 689846, 10692613, 21385226]

約数ペア:

[(1, 21385226), (2, 10692613), (31, 689846), (62, 344923), (131, 163246), (262, 81623), (2633, 8122), (4061, 5266)]