21709610

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{5387}}^1$

素因数の和:5438

約数の個数: 32

約数和(自身を含む): 43448832

約数和(自身を除く): 21739222

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 5387, 10774, 26935, 53870, 70031, 140062, 166997, 333994, 350155, 700310, 834985, 1669970, 2170961, 4341922, 10854805, 21709610]

約数ペア:

[(1, 21709610), (2, 10854805), (5, 4341922), (10, 2170961), (13, 1669970), (26, 834985), (31, 700310), (62, 350155), (65, 333994), (130, 166997), (155, 140062), (310, 70031), (403, 53870), (806, 26935), (2015, 10774), (4030, 5387)]