21360250

素因数分解:

$2^1\times 5^3\times {\mathrm{43}}^1\times {\mathrm{1987}}^1$

素因数の和:2047

約数の個数: 32

約数和(自身を含む): 40936896

約数和(自身を除く): 19576646

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 125, 215, 250, 430, 1075, 1987, 2150, 3974, 5375, 9935, 10750, 19870, 49675, 85441, 99350, 170882, 248375, 427205, 496750, 854410, 2136025, 4272050, 10680125, 21360250]

約数ペア:

[(1, 21360250), (2, 10680125), (5, 4272050), (10, 2136025), (25, 854410), (43, 496750), (50, 427205), (86, 248375), (125, 170882), (215, 99350), (250, 85441), (430, 49675), (1075, 19870), (1987, 10750), (2150, 9935), (3974, 5375)]