21268845

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12119}}^1$

素因数の和:12146

約数の個数: 32

約数和(自身を含む): 40723200

約数和(自身を除く): 19454355

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 585, 1755, 12119, 36357, 60595, 109071, 157547, 181785, 327213, 472641, 545355, 787735, 1417923, 1636065, 2363205, 4253769, 7089615, 21268845]

約数ペア:

[(1, 21268845), (3, 7089615), (5, 4253769), (9, 2363205), (13, 1636065), (15, 1417923), (27, 787735), (39, 545355), (45, 472641), (65, 327213), (117, 181785), (135, 157547), (195, 109071), (351, 60595), (585, 36357), (1755, 12119)]