216315841

素因数分解:

$7^2\times {\mathrm{101}}^1\times {\mathrm{109}}^1\times {\mathrm{401}}^1$

素因数の和:625

約数の個数: 24

約数和(自身を含む): 257095080

約数和(自身を除く): 40779239

約数列:

[1, 7, 49, 101, 109, 401, 707, 763, 2807, 4949, 5341, 11009, 19649, 40501, 43709, 77063, 283507, 305963, 539441, 1984549, 2141741, 4414609, 30902263, 216315841]

約数ペア:

[(1, 216315841), (7, 30902263), (49, 4414609), (101, 2141741), (109, 1984549), (401, 539441), (707, 305963), (763, 283507), (2807, 77063), (4949, 43709), (5341, 40501), (11009, 19649)]