21319750

素因数分解:

$2^1\times 5^3\times {\mathrm{107}}^1\times {\mathrm{797}}^1$

素因数の和:921

約数の個数: 32

約数和(自身を含む): 40334112

約数和(自身を除く): 19014362

約数列:

[1, 2, 5, 10, 25, 50, 107, 125, 214, 250, 535, 797, 1070, 1594, 2675, 3985, 5350, 7970, 13375, 19925, 26750, 39850, 85279, 99625, 170558, 199250, 426395, 852790, 2131975, 4263950, 10659875, 21319750]

約数ペア:

[(1, 21319750), (2, 10659875), (5, 4263950), (10, 2131975), (25, 852790), (50, 426395), (107, 199250), (125, 170558), (214, 99625), (250, 85279), (535, 39850), (797, 26750), (1070, 19925), (1594, 13375), (2675, 7970), (3985, 5350)]