21116280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{1181}}^1$

素因数の和:1344

約数の個数: 64

約数和(自身を含む): 63828000

約数和(自身を除く): 42711720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 149, 298, 447, 596, 745, 894, 1181, 1192, 1490, 1788, 2235, 2362, 2980, 3543, 3576, 4470, 4724, 5905, 5960, 7086, 8940, 9448, 11810, 14172, 17715, 17880, 23620, 28344, 35430, 47240, 70860, 141720, 175969, 351938, 527907, 703876, 879845, 1055814, 1407752, 1759690, 2111628, 2639535, 3519380, 4223256, 5279070, 7038760, 10558140, 21116280]

約数ペア:

[(1, 21116280), (2, 10558140), (3, 7038760), (4, 5279070), (5, 4223256), (6, 3519380), (8, 2639535), (10, 2111628), (12, 1759690), (15, 1407752), (20, 1055814), (24, 879845), (30, 703876), (40, 527907), (60, 351938), (120, 175969), (149, 141720), (298, 70860), (447, 47240), (596, 35430), (745, 28344), (894, 23620), (1181, 17880), (1192, 17715), (1490, 14172), (1788, 11810), (2235, 9448), (2362, 8940), (2980, 7086), (3543, 5960), (3576, 5905), (4470, 4724)]