21318915

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{49009}}^1$

素因数の和:49046

約数の個数: 16

約数和(自身を含む): 35287200

約数和(自身を除く): 13968285

約数列:

[1, 3, 5, 15, 29, 87, 145, 435, 49009, 147027, 245045, 735135, 1421261, 4263783, 7106305, 21318915]

約数ペア:

[(1, 21318915), (3, 7106305), (5, 4263783), (15, 1421261), (29, 735135), (87, 245045), (145, 147027), (435, 49009)]