201519213

素因数分解:

$3^1\times 7^2\times {\mathrm{193}}^1\times {\mathrm{7103}}^1$

素因数の和:7313

約数の個数: 24

約数和(自身を含む): 314224128

約数和(自身を除く): 112704915

約数列:

[1, 3, 7, 21, 49, 147, 193, 579, 1351, 4053, 7103, 9457, 21309, 28371, 49721, 149163, 348047, 1044141, 1370879, 4112637, 9596153, 28788459, 67173071, 201519213]

約数ペア:

[(1, 201519213), (3, 67173071), (7, 28788459), (21, 9596153), (49, 4112637), (147, 1370879), (193, 1044141), (579, 348047), (1351, 149163), (4053, 49721), (7103, 28371), (9457, 21309)]