21151650

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{10847}}^1$

素因数の和:10875

約数の個数: 48

約数和(自身を含む): 56496384

約数和(自身を除く): 35344734

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 130, 150, 195, 325, 390, 650, 975, 1950, 10847, 21694, 32541, 54235, 65082, 108470, 141011, 162705, 271175, 282022, 325410, 423033, 542350, 705055, 813525, 846066, 1410110, 1627050, 2115165, 3525275, 4230330, 7050550, 10575825, 21151650]

約数ペア:

[(1, 21151650), (2, 10575825), (3, 7050550), (5, 4230330), (6, 3525275), (10, 2115165), (13, 1627050), (15, 1410110), (25, 846066), (26, 813525), (30, 705055), (39, 542350), (50, 423033), (65, 325410), (75, 282022), (78, 271175), (130, 162705), (150, 141011), (195, 108470), (325, 65082), (390, 54235), (650, 32541), (975, 21694), (1950, 10847)]