21402969

素因数分解:

$3^1\times 7^1\times {\mathrm{241}}^1\times {\mathrm{4229}}^1$

素因数の和:4480

約数の個数: 16

約数和(自身を含む): 32757120

約数和(自身を除く): 11354151

約数列:

[1, 3, 7, 21, 241, 723, 1687, 4229, 5061, 12687, 29603, 88809, 1019189, 3057567, 7134323, 21402969]

約数ペア:

[(1, 21402969), (3, 7134323), (7, 3057567), (21, 1019189), (241, 88809), (723, 29603), (1687, 12687), (4229, 5061)]