21154653

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{3847}}^1$

素因数の和:3913

約数の個数: 24

約数和(自身を含む): 33616128

約数和(自身を除く): 12461475

約数列:

[1, 3, 9, 13, 39, 47, 117, 141, 423, 611, 1833, 3847, 5499, 11541, 34623, 50011, 150033, 180809, 450099, 542427, 1627281, 2350517, 7051551, 21154653]

約数ペア:

[(1, 21154653), (3, 7051551), (9, 2350517), (13, 1627281), (39, 542427), (47, 450099), (117, 180809), (141, 150033), (423, 50011), (611, 34623), (1833, 11541), (3847, 5499)]