20868525

素因数分解:

$3^2\times 5^2\times {\mathrm{137}}^1\times {\mathrm{677}}^1$

素因数の和:830

約数の個数: 36

約数和(自身を含む): 37706292

約数和(自身を除く): 16837767

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 137, 225, 411, 677, 685, 1233, 2031, 2055, 3385, 3425, 6093, 6165, 10155, 10275, 16925, 30465, 30825, 50775, 92749, 152325, 278247, 463745, 834741, 1391235, 2318725, 4173705, 6956175, 20868525]

約数ペア:

[(1, 20868525), (3, 6956175), (5, 4173705), (9, 2318725), (15, 1391235), (25, 834741), (45, 463745), (75, 278247), (137, 152325), (225, 92749), (411, 50775), (677, 30825), (685, 30465), (1233, 16925), (2031, 10275), (2055, 10155), (3385, 6165), (3425, 6093)]