21296310040

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31318103}}^1$

素因数の和:31318131

約数の個数: 32

約数和(自身を含む): 50735328480

約数和(自身を除く): 29439018440

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 31318103, 62636206, 125272412, 156590515, 250544824, 313181030, 532407751, 626362060, 1064815502, 1252724120, 2129631004, 2662038755, 4259262008, 5324077510, 10648155020, 21296310040]

約数ペア:

[(1, 21296310040), (2, 10648155020), (4, 5324077510), (5, 4259262008), (8, 2662038755), (10, 2129631004), (17, 1252724120), (20, 1064815502), (34, 626362060), (40, 532407751), (68, 313181030), (85, 250544824), (136, 156590515), (170, 125272412), (340, 62636206), (680, 31318103)]