21542865

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{281}}^1$

素因数の和:577

約数の個数: 32

約数和(自身を含む): 36547200

約数和(自身を除く): 15004335

約数列:

[1, 3, 5, 15, 19, 57, 95, 269, 281, 285, 807, 843, 1345, 1405, 4035, 4215, 5111, 5339, 15333, 16017, 25555, 26695, 75589, 76665, 80085, 226767, 377945, 1133835, 1436191, 4308573, 7180955, 21542865]

約数ペア:

[(1, 21542865), (3, 7180955), (5, 4308573), (15, 1436191), (19, 1133835), (57, 377945), (95, 226767), (269, 80085), (281, 76665), (285, 75589), (807, 26695), (843, 25555), (1345, 16017), (1405, 15333), (4035, 5339), (4215, 5111)]