21227710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{10457}}^1$

素因数の和:10500

約数の個数: 32

約数和(自身を含む): 45178560

約数和(自身を除く): 23950850

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 145, 203, 290, 406, 1015, 2030, 10457, 20914, 52285, 73199, 104570, 146398, 303253, 365995, 606506, 731990, 1516265, 2122771, 3032530, 4245542, 10613855, 21227710]

約数ペア:

[(1, 21227710), (2, 10613855), (5, 4245542), (7, 3032530), (10, 2122771), (14, 1516265), (29, 731990), (35, 606506), (58, 365995), (70, 303253), (145, 146398), (203, 104570), (290, 73199), (406, 52285), (1015, 20914), (2030, 10457)]