19876065

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{233}}^1$

素因数の和:310

約数の個数: 48

約数和(自身を含む): 35852544

約数和(自身を除く): 15976479

約数列:

[1, 3, 5, 11, 15, 33, 47, 55, 121, 141, 165, 233, 235, 363, 517, 605, 699, 705, 1165, 1551, 1815, 2563, 2585, 3495, 5687, 7689, 7755, 10951, 12815, 17061, 28193, 28435, 32853, 38445, 54755, 84579, 85305, 120461, 140965, 164265, 361383, 422895, 602305, 1325071, 1806915, 3975213, 6625355, 19876065]

約数ペア:

[(1, 19876065), (3, 6625355), (5, 3975213), (11, 1806915), (15, 1325071), (33, 602305), (47, 422895), (55, 361383), (121, 164265), (141, 140965), (165, 120461), (233, 85305), (235, 84579), (363, 54755), (517, 38445), (605, 32853), (699, 28435), (705, 28193), (1165, 17061), (1551, 12815), (1815, 10951), (2563, 7755), (2585, 7689), (3495, 5687)]