20315841

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{10631}}^1$

素因数の和:10661

約数の個数: 24

約数和(自身を含む): 33937344

約数和(自身を除く): 13621503

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 10631, 31893, 74417, 138203, 223251, 414609, 520919, 967421, 1562757, 2902263, 6771947, 20315841]

約数ペア:

[(1, 20315841), (3, 6771947), (7, 2902263), (13, 1562757), (21, 967421), (39, 520919), (49, 414609), (91, 223251), (147, 138203), (273, 74417), (637, 31893), (1911, 10631)]