21110943

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{293}}^1$

素因数の和:423

約数の個数: 32

約数和(自身を含む): 33417216

約数和(自身を除く): 12306273

約数列:

[1, 3, 7, 21, 47, 73, 141, 219, 293, 329, 511, 879, 987, 1533, 2051, 3431, 6153, 10293, 13771, 21389, 24017, 41313, 64167, 72051, 96397, 149723, 289191, 449169, 1005283, 3015849, 7036981, 21110943]

約数ペア:

[(1, 21110943), (3, 7036981), (7, 3015849), (21, 1005283), (47, 449169), (73, 289191), (141, 149723), (219, 96397), (293, 72051), (329, 64167), (511, 41313), (879, 24017), (987, 21389), (1533, 13771), (2051, 10293), (3431, 6153)]