20448831

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{761}}^1$

素因数の和:843

約数の個数: 24

約数和(自身を含む): 30120336

約数和(自身を除く): 9671505

約数列:

[1, 3, 13, 39, 53, 159, 169, 507, 689, 761, 2067, 2283, 8957, 9893, 26871, 29679, 40333, 120999, 128609, 385827, 524329, 1572987, 6816277, 20448831]

約数ペア:

[(1, 20448831), (3, 6816277), (13, 1572987), (39, 524329), (53, 385827), (159, 128609), (169, 120999), (507, 40333), (689, 29679), (761, 26871), (2067, 9893), (2283, 8957)]