18638035

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{167}}^1$

素因数の和:303

約数の個数: 32

約数和(自身を含む): 25909632

約数和(自身を除く): 7271597

約数列:

[1, 5, 13, 17, 65, 85, 101, 167, 221, 505, 835, 1105, 1313, 1717, 2171, 2839, 6565, 8585, 10855, 14195, 16867, 22321, 36907, 84335, 111605, 184535, 219271, 286739, 1096355, 1433695, 3727607, 18638035]

約数ペア:

[(1, 18638035), (5, 3727607), (13, 1433695), (17, 1096355), (65, 286739), (85, 219271), (101, 184535), (167, 111605), (221, 84335), (505, 36907), (835, 22321), (1105, 16867), (1313, 14195), (1717, 10855), (2171, 8585), (2839, 6565)]