661436

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:229

約数の個数: 24

約数和(自身を含む): 1251936

約数和(自身を除く): 590500

約数列:

[1, 2, 4, 17, 34, 68, 71, 137, 142, 274, 284, 548, 1207, 2329, 2414, 4658, 4828, 9316, 9727, 19454, 38908, 165359, 330718, 661436]

約数ペア:

[(1, 661436), (2, 330718), (4, 165359), (17, 38908), (34, 19454), (68, 9727), (71, 9316), (137, 4828), (142, 4658), (274, 2414), (284, 2329), (548, 1207)]