21859418

素因数分解:

$2^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{239}}^1$

素因数の和:434

約数の個数: 32

約数和(自身を含む): 38707200

約数和(自身を除く): 16847782

約数列:

[1, 2, 7, 14, 47, 94, 139, 239, 278, 329, 478, 658, 973, 1673, 1946, 3346, 6533, 11233, 13066, 22466, 33221, 45731, 66442, 78631, 91462, 157262, 232547, 465094, 1561387, 3122774, 10929709, 21859418]

約数ペア:

[(1, 21859418), (2, 10929709), (7, 3122774), (14, 1561387), (47, 465094), (94, 232547), (139, 157262), (239, 91462), (278, 78631), (329, 66442), (478, 45731), (658, 33221), (973, 22466), (1673, 13066), (1946, 11233), (3346, 6533)]