21528558

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{20983}}^1$

素因数の和:21013

約数の個数: 32

約数和(自身を含む): 50361600

約数和(自身を除く): 28833042

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 114, 171, 342, 513, 1026, 20983, 41966, 62949, 125898, 188847, 377694, 398677, 566541, 797354, 1133082, 1196031, 2392062, 3588093, 7176186, 10764279, 21528558]

約数ペア:

[(1, 21528558), (2, 10764279), (3, 7176186), (6, 3588093), (9, 2392062), (18, 1196031), (19, 1133082), (27, 797354), (38, 566541), (54, 398677), (57, 377694), (114, 188847), (171, 125898), (342, 62949), (513, 41966), (1026, 20983)]