1389779919

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{491}}^1\times {\mathrm{28591}}^1$

素因数の和:29099

約数の個数: 24

約数和(自身を含む): 2194493184

約数和(自身を除く): 804713265

約数列:

[1, 3, 9, 11, 33, 99, 491, 1473, 4419, 5401, 16203, 28591, 48609, 85773, 257319, 314501, 943503, 2830509, 14038181, 42114543, 126343629, 154419991, 463259973, 1389779919]

約数ペア:

[(1, 1389779919), (3, 463259973), (9, 154419991), (11, 126343629), (33, 42114543), (99, 14038181), (491, 2830509), (1473, 943503), (4419, 314501), (5401, 257319), (16203, 85773), (28591, 48609)]