21349917

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{1297}}^1$

素因数の和:1393

約数の個数: 24

約数和(自身を含む): 32398080

約数和(自身を除く): 11048163

約数列:

[1, 3, 9, 31, 59, 93, 177, 279, 531, 1297, 1829, 3891, 5487, 11673, 16461, 40207, 76523, 120621, 229569, 361863, 688707, 2372213, 7116639, 21349917]

約数ペア:

[(1, 21349917), (3, 7116639), (9, 2372213), (31, 688707), (59, 361863), (93, 229569), (177, 120621), (279, 76523), (531, 40207), (1297, 16461), (1829, 11673), (3891, 5487)]