199861587

素因数分解:

$3^4\times {\mathrm{389}}^1\times {\mathrm{6343}}^1$

素因数の和:6744

約数の個数: 20

約数和(自身を含む): 299373360

約数和(自身を除く): 99511773

約数列:

[1, 3, 9, 27, 81, 389, 1167, 3501, 6343, 10503, 19029, 31509, 57087, 171261, 513783, 2467427, 7402281, 22206843, 66620529, 199861587]

約数ペア:

[(1, 199861587), (3, 66620529), (9, 22206843), (27, 7402281), (81, 2467427), (389, 513783), (1167, 171261), (3501, 57087), (6343, 31509), (10503, 19029)]