20163915

素因数分解:

$3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{2749}}^1$

素因数の和:2923

約数の個数: 24

約数和(自身を含む): 35178000

約数和(自身を除く): 15014085

約数列:

[1, 3, 5, 9, 15, 45, 163, 489, 815, 1467, 2445, 2749, 7335, 8247, 13745, 24741, 41235, 123705, 448087, 1344261, 2240435, 4032783, 6721305, 20163915]

約数ペア:

[(1, 20163915), (3, 6721305), (5, 4032783), (9, 2240435), (15, 1344261), (45, 448087), (163, 123705), (489, 41235), (815, 24741), (1467, 13745), (2445, 8247), (2749, 7335)]