19721570356

素因数分解:

$2^2\times {\mathrm{313}}^1\times {\mathrm{811}}^1\times {\mathrm{19423}}^1$

素因数の和:20551

約数の個数: 24

約数和(自身を含む): 34667489024

約数和(自身を除く): 14945918668

約数列:

[1, 2, 4, 313, 626, 811, 1252, 1622, 3244, 19423, 38846, 77692, 253843, 507686, 1015372, 6079399, 12158798, 15752053, 24317596, 31504106, 63008212, 4930392589, 9860785178, 19721570356]

約数ペア:

[(1, 19721570356), (2, 9860785178), (4, 4930392589), (313, 63008212), (626, 31504106), (811, 24317596), (1252, 15752053), (1622, 12158798), (3244, 6079399), (19423, 1015372), (38846, 507686), (77692, 253843)]