20812728

素因数分解:

$2^3\times 3^1\times {\mathrm{47}}^1\times {\mathrm{18451}}^1$

素因数の和:18507

約数の個数: 32

約数和(自身を含む): 53141760

約数和(自身を除く): 32329032

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 47, 94, 141, 188, 282, 376, 564, 1128, 18451, 36902, 55353, 73804, 110706, 147608, 221412, 442824, 867197, 1734394, 2601591, 3468788, 5203182, 6937576, 10406364, 20812728]

約数ペア:

[(1, 20812728), (2, 10406364), (3, 6937576), (4, 5203182), (6, 3468788), (8, 2601591), (12, 1734394), (24, 867197), (47, 442824), (94, 221412), (141, 147608), (188, 110706), (282, 73804), (376, 55353), (564, 36902), (1128, 18451)]