21797490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{5081}}^1$

素因数の和:5115

約数の個数: 64

約数和(自身を含む): 61471872

約数和(自身を除く): 39674382

約数列:

[1, 2, 3, 5, 6, 10, 11, 13, 15, 22, 26, 30, 33, 39, 55, 65, 66, 78, 110, 130, 143, 165, 195, 286, 330, 390, 429, 715, 858, 1430, 2145, 4290, 5081, 10162, 15243, 25405, 30486, 50810, 55891, 66053, 76215, 111782, 132106, 152430, 167673, 198159, 279455, 330265, 335346, 396318, 558910, 660530, 726583, 838365, 990795, 1453166, 1676730, 1981590, 2179749, 3632915, 4359498, 7265830, 10898745, 21797490]

約数ペア:

[(1, 21797490), (2, 10898745), (3, 7265830), (5, 4359498), (6, 3632915), (10, 2179749), (11, 1981590), (13, 1676730), (15, 1453166), (22, 990795), (26, 838365), (30, 726583), (33, 660530), (39, 558910), (55, 396318), (65, 335346), (66, 330265), (78, 279455), (110, 198159), (130, 167673), (143, 152430), (165, 132106), (195, 111782), (286, 76215), (330, 66053), (390, 55891), (429, 50810), (715, 30486), (858, 25405), (1430, 15243), (2145, 10162), (4290, 5081)]