16858420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{27191}}^1$

素因数の和:27231

約数の個数: 24

約数和(自身を含む): 36546048

約数和(自身を除く): 19687628

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 27191, 54382, 108764, 135955, 271910, 543820, 842921, 1685842, 3371684, 4214605, 8429210, 16858420]

約数ペア:

[(1, 16858420), (2, 8429210), (4, 4214605), (5, 3371684), (10, 1685842), (20, 842921), (31, 543820), (62, 271910), (124, 135955), (155, 108764), (310, 54382), (620, 27191)]