21409713

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{9631}}^1$

素因数の和:9669

約数の個数: 24

約数和(自身を含む): 35060480

約数和(自身を除く): 13650767

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 9631, 28893, 86679, 125203, 182989, 375609, 548967, 1126827, 1646901, 2378857, 7136571, 21409713]

約数ペア:

[(1, 21409713), (3, 7136571), (9, 2378857), (13, 1646901), (19, 1126827), (39, 548967), (57, 375609), (117, 182989), (171, 125203), (247, 86679), (741, 28893), (2223, 9631)]