21229122830

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{335957}}^1$

素因数の和:336124

約数の個数: 32

約数和(自身を含む): 39186141120

約数和(自身を除く): 17957018290

約数列:

[1, 2, 5, 10, 71, 89, 142, 178, 355, 445, 710, 890, 6319, 12638, 31595, 63190, 335957, 671914, 1679785, 3359570, 23852947, 29900173, 47705894, 59800346, 119264735, 149500865, 238529470, 299001730, 2122912283, 4245824566, 10614561415, 21229122830]

約数ペア:

[(1, 21229122830), (2, 10614561415), (5, 4245824566), (10, 2122912283), (71, 299001730), (89, 238529470), (142, 149500865), (178, 119264735), (355, 59800346), (445, 47705894), (710, 29900173), (890, 23852947), (6319, 3359570), (12638, 1679785), (31595, 671914), (63190, 335957)]