209215941

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{3137}}^1$

素因数の和:3241

約数の個数: 32

約数和(自身を含む): 318117888

約数和(自身を除く): 108901947

約数列:

[1, 3, 11, 33, 43, 47, 129, 141, 473, 517, 1419, 1551, 2021, 3137, 6063, 9411, 22231, 34507, 66693, 103521, 134891, 147439, 404673, 442317, 1483801, 1621829, 4451403, 4865487, 6339877, 19019631, 69738647, 209215941]

約数ペア:

[(1, 209215941), (3, 69738647), (11, 19019631), (33, 6339877), (43, 4865487), (47, 4451403), (129, 1621829), (141, 1483801), (473, 442317), (517, 404673), (1419, 147439), (1551, 134891), (2021, 103521), (3137, 66693), (6063, 34507), (9411, 22231)]