18597371

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:195

約数の個数: 32

約数和(自身を含む): 23063040

約数和(自身を除く): 4465669

約数列:

[1, 13, 17, 19, 43, 103, 221, 247, 323, 559, 731, 817, 1339, 1751, 1957, 4199, 4429, 9503, 10621, 13889, 22763, 25441, 33269, 57577, 75293, 84151, 180557, 432497, 978809, 1093963, 1430567, 18597371]

約数ペア:

[(1, 18597371), (13, 1430567), (17, 1093963), (19, 978809), (43, 432497), (103, 180557), (221, 84151), (247, 75293), (323, 57577), (559, 33269), (731, 25441), (817, 22763), (1339, 13889), (1751, 10621), (1957, 9503), (4199, 4429)]