21718010

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2971}}^1$

素因数の和:3038

約数の個数: 32

約数和(自身を含む): 42368832

約数和(自身を除く): 20650822

約数列:

[1, 2, 5, 10, 17, 34, 43, 85, 86, 170, 215, 430, 731, 1462, 2971, 3655, 5942, 7310, 14855, 29710, 50507, 101014, 127753, 252535, 255506, 505070, 638765, 1277530, 2171801, 4343602, 10859005, 21718010]

約数ペア:

[(1, 21718010), (2, 10859005), (5, 4343602), (10, 2171801), (17, 1277530), (34, 638765), (43, 505070), (85, 255506), (86, 252535), (170, 127753), (215, 101014), (430, 50507), (731, 29710), (1462, 14855), (2971, 7310), (3655, 5942)]