21172710

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{233}}^2$

素因数の和:489

約数の個数: 48

約数和(自身を含む): 54959184

約数和(自身を除く): 33786474

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 233, 390, 466, 699, 1165, 1398, 2330, 3029, 3495, 6058, 6990, 9087, 15145, 18174, 30290, 45435, 54289, 90870, 108578, 162867, 271445, 325734, 542890, 705757, 814335, 1411514, 1628670, 2117271, 3528785, 4234542, 7057570, 10586355, 21172710]

約数ペア:

[(1, 21172710), (2, 10586355), (3, 7057570), (5, 4234542), (6, 3528785), (10, 2117271), (13, 1628670), (15, 1411514), (26, 814335), (30, 705757), (39, 542890), (65, 325734), (78, 271445), (130, 162867), (195, 108578), (233, 90870), (390, 54289), (466, 45435), (699, 30290), (1165, 18174), (1398, 15145), (2330, 9087), (3029, 6990), (3495, 6058)]