21112290

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{8089}}^1$

素因数の和:8131

約数の個数: 48

約数和(自身を含む): 56791800

約数和(自身を除く): 35679510

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 29, 30, 45, 58, 87, 90, 145, 174, 261, 290, 435, 522, 870, 1305, 2610, 8089, 16178, 24267, 40445, 48534, 72801, 80890, 121335, 145602, 234581, 242670, 364005, 469162, 703743, 728010, 1172905, 1407486, 2111229, 2345810, 3518715, 4222458, 7037430, 10556145, 21112290]

約数ペア:

[(1, 21112290), (2, 10556145), (3, 7037430), (5, 4222458), (6, 3518715), (9, 2345810), (10, 2111229), (15, 1407486), (18, 1172905), (29, 728010), (30, 703743), (45, 469162), (58, 364005), (87, 242670), (90, 234581), (145, 145602), (174, 121335), (261, 80890), (290, 72801), (435, 48534), (522, 40445), (870, 24267), (1305, 16178), (2610, 8089)]