389954019

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{26951}}^1$

素因数の和:27027

約数の個数: 32

約数和(自身を含む): 652022784

約数和(自身を除く): 262068765

約数列:

[1, 3, 7, 13, 21, 39, 53, 91, 159, 273, 371, 689, 1113, 2067, 4823, 14469, 26951, 80853, 188657, 350363, 565971, 1051089, 1428403, 2452541, 4285209, 7357623, 9998821, 18569239, 29996463, 55707717, 129984673, 389954019]

約数ペア:

[(1, 389954019), (3, 129984673), (7, 55707717), (13, 29996463), (21, 18569239), (39, 9998821), (53, 7357623), (91, 4285209), (159, 2452541), (273, 1428403), (371, 1051089), (689, 565971), (1113, 350363), (2067, 188657), (4823, 80853), (14469, 26951)]