18858730

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{991}}^1$

素因数の和:1182

約数の個数: 32

約数和(自身を含む): 37283328

約数和(自身を除く): 18424598

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 173, 346, 865, 991, 1730, 1903, 1982, 3806, 4955, 9515, 9910, 10901, 19030, 21802, 54505, 109010, 171443, 342886, 857215, 1714430, 1885873, 3771746, 9429365, 18858730]

約数ペア:

[(1, 18858730), (2, 9429365), (5, 3771746), (10, 1885873), (11, 1714430), (22, 857215), (55, 342886), (110, 171443), (173, 109010), (346, 54505), (865, 21802), (991, 19030), (1730, 10901), (1903, 9910), (1982, 9515), (3806, 4955)]