217130452

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^3$

素因数の和:289

約数の個数: 48

約数和(自身を含む): 479122560

約数和(自身を除く): 261992108

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 89, 154, 178, 308, 356, 623, 979, 1246, 1958, 2492, 3916, 6853, 7921, 13706, 15842, 27412, 31684, 55447, 87131, 110894, 174262, 221788, 348524, 609917, 704969, 1219834, 1409938, 2439668, 2819876, 4934783, 7754659, 9869566, 15509318, 19739132, 31018636, 54282613, 108565226, 217130452]

約数ペア:

[(1, 217130452), (2, 108565226), (4, 54282613), (7, 31018636), (11, 19739132), (14, 15509318), (22, 9869566), (28, 7754659), (44, 4934783), (77, 2819876), (89, 2439668), (154, 1409938), (178, 1219834), (308, 704969), (356, 609917), (623, 348524), (979, 221788), (1246, 174262), (1958, 110894), (2492, 87131), (3916, 55447), (6853, 31684), (7921, 27412), (13706, 15842)]