18078697

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{281}}^1$

素因数の和:409

約数の個数: 24

約数和(自身を含む): 22953672

約数和(自身を除く): 4874975

約数列:

[1, 7, 13, 49, 91, 101, 281, 637, 707, 1313, 1967, 3653, 4949, 9191, 13769, 25571, 28381, 64337, 178997, 198667, 368953, 1390669, 2582671, 18078697]

約数ペア:

[(1, 18078697), (7, 2582671), (13, 1390669), (49, 368953), (91, 198667), (101, 178997), (281, 64337), (637, 28381), (707, 25571), (1313, 13769), (1967, 9191), (3653, 4949)]