20644507

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{53}}^1\times {\mathrm{83}}^1$

素因数の和:187

約数の個数: 24

約数和(自身を含む): 24195024

約数和(自身を除く): 3550517

約数列:

[1, 13, 19, 53, 83, 247, 361, 689, 1007, 1079, 1577, 4399, 4693, 13091, 19133, 20501, 29963, 57187, 83581, 248729, 389519, 1086553, 1588039, 20644507]

約数ペア:

[(1, 20644507), (13, 1588039), (19, 1086553), (53, 389519), (83, 248729), (247, 83581), (361, 57187), (689, 29963), (1007, 20501), (1079, 19133), (1577, 13091), (4399, 4693)]