21462057

素因数分解:

$3^3\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:310

約数の個数: 32

約数和(自身を含む): 32914560

約数和(自身を除く): 11452503

約数列:

[1, 3, 9, 27, 61, 83, 157, 183, 249, 471, 549, 747, 1413, 1647, 2241, 4239, 5063, 9577, 13031, 15189, 28731, 39093, 45567, 86193, 117279, 136701, 258579, 351837, 794891, 2384673, 7154019, 21462057]

約数ペア:

[(1, 21462057), (3, 7154019), (9, 2384673), (27, 794891), (61, 351837), (83, 258579), (157, 136701), (183, 117279), (249, 86193), (471, 45567), (549, 39093), (747, 28731), (1413, 15189), (1647, 13031), (2241, 9577), (4239, 5063)]