20442537

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{359}}^1$

素因数の和:427

約数の個数: 40

約数和(自身を含む): 33105600

約数和(自身を除く): 12663063

約数列:

[1, 3, 9, 19, 27, 37, 57, 81, 111, 171, 333, 359, 513, 703, 999, 1077, 1539, 2109, 2997, 3231, 6327, 6821, 9693, 13283, 18981, 20463, 29079, 39849, 56943, 61389, 119547, 184167, 252377, 358641, 552501, 757131, 1075923, 2271393, 6814179, 20442537]

約数ペア:

[(1, 20442537), (3, 6814179), (9, 2271393), (19, 1075923), (27, 757131), (37, 552501), (57, 358641), (81, 252377), (111, 184167), (171, 119547), (333, 61389), (359, 56943), (513, 39849), (703, 29079), (999, 20463), (1077, 18981), (1539, 13283), (2109, 9693), (2997, 6821), (3231, 6327)]