217840312

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{43291}}^1$

素因数の和:43351

約数の個数: 32

約数和(自身を含む): 444175920

約数和(自身を除く): 226335608

約数列:

[1, 2, 4, 8, 17, 34, 37, 68, 74, 136, 148, 296, 629, 1258, 2516, 5032, 43291, 86582, 173164, 346328, 735947, 1471894, 1601767, 2943788, 3203534, 5887576, 6407068, 12814136, 27230039, 54460078, 108920156, 217840312]

約数ペア:

[(1, 217840312), (2, 108920156), (4, 54460078), (8, 27230039), (17, 12814136), (34, 6407068), (37, 5887576), (68, 3203534), (74, 2943788), (136, 1601767), (148, 1471894), (296, 735947), (629, 346328), (1258, 173164), (2516, 86582), (5032, 43291)]