21410120

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{18457}}^1$

素因数の和:18497

約数の個数: 32

約数和(自身を含む): 49836600

約数和(自身を除く): 28426480

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 18457, 36914, 73828, 92285, 147656, 184570, 369140, 535253, 738280, 1070506, 2141012, 2676265, 4282024, 5352530, 10705060, 21410120]

約数ペア:

[(1, 21410120), (2, 10705060), (4, 5352530), (5, 4282024), (8, 2676265), (10, 2141012), (20, 1070506), (29, 738280), (40, 535253), (58, 369140), (116, 184570), (145, 147656), (232, 92285), (290, 73828), (580, 36914), (1160, 18457)]