21326790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{5189}}^1$

素因数の和:5336

約数の個数: 32

約数和(自身を含む): 51567840

約数和(自身を除く): 30241050

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 137, 274, 411, 685, 822, 1370, 2055, 4110, 5189, 10378, 15567, 25945, 31134, 51890, 77835, 155670, 710893, 1421786, 2132679, 3554465, 4265358, 7108930, 10663395, 21326790]

約数ペア:

[(1, 21326790), (2, 10663395), (3, 7108930), (5, 4265358), (6, 3554465), (10, 2132679), (15, 1421786), (30, 710893), (137, 155670), (274, 77835), (411, 51890), (685, 31134), (822, 25945), (1370, 15567), (2055, 10378), (4110, 5189)]