21310646

素因数分解:

$2^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{233}}^1$

素因数の和:428

約数の個数: 32

約数和(自身を含む): 37739520

約数和(自身を除く): 16428874

約数列:

[1, 2, 7, 14, 47, 94, 139, 233, 278, 329, 466, 658, 973, 1631, 1946, 3262, 6533, 10951, 13066, 21902, 32387, 45731, 64774, 76657, 91462, 153314, 226709, 453418, 1522189, 3044378, 10655323, 21310646]

約数ペア:

[(1, 21310646), (2, 10655323), (7, 3044378), (14, 1522189), (47, 453418), (94, 226709), (139, 153314), (233, 91462), (278, 76657), (329, 64774), (466, 45731), (658, 32387), (973, 21902), (1631, 13066), (1946, 10951), (3262, 6533)]