209562717

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{4019}}^1$

素因数の和:4233

約数の個数: 32

約数和(自身を含む): 345784320

約数和(自身を除く): 136221603

約数列:

[1, 3, 7, 13, 21, 39, 91, 191, 273, 573, 1337, 2483, 4011, 4019, 7449, 12057, 17381, 28133, 52143, 52247, 84399, 156741, 365729, 767629, 1097187, 2302887, 5373403, 9979177, 16120209, 29937531, 69854239, 209562717]

約数ペア:

[(1, 209562717), (3, 69854239), (7, 29937531), (13, 16120209), (21, 9979177), (39, 5373403), (91, 2302887), (191, 1097187), (273, 767629), (573, 365729), (1337, 156741), (2483, 84399), (4011, 52247), (4019, 52143), (7449, 28133), (12057, 17381)]