21182460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2089}}^1$

素因数の和:2127

約数の個数: 72

約数和(自身を含む): 64254960

約数和(自身を除く): 43072500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 169, 195, 260, 338, 390, 507, 676, 780, 845, 1014, 1690, 2028, 2089, 2535, 3380, 4178, 5070, 6267, 8356, 10140, 10445, 12534, 20890, 25068, 27157, 31335, 41780, 54314, 62670, 81471, 108628, 125340, 135785, 162942, 271570, 325884, 353041, 407355, 543140, 706082, 814710, 1059123, 1412164, 1629420, 1765205, 2118246, 3530410, 4236492, 5295615, 7060820, 10591230, 21182460]

約数ペア:

[(1, 21182460), (2, 10591230), (3, 7060820), (4, 5295615), (5, 4236492), (6, 3530410), (10, 2118246), (12, 1765205), (13, 1629420), (15, 1412164), (20, 1059123), (26, 814710), (30, 706082), (39, 543140), (52, 407355), (60, 353041), (65, 325884), (78, 271570), (130, 162942), (156, 135785), (169, 125340), (195, 108628), (260, 81471), (338, 62670), (390, 54314), (507, 41780), (676, 31335), (780, 27157), (845, 25068), (1014, 20890), (1690, 12534), (2028, 10445), (2089, 10140), (2535, 8356), (3380, 6267), (4178, 5070)]