19408895

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{229}}^1$

素因数の和:335

約数の個数: 32

約数和(自身を含む): 27025920

約数和(自身を除く): 7617025

約数列:

[1, 5, 11, 23, 55, 67, 115, 229, 253, 335, 737, 1145, 1265, 1541, 2519, 3685, 5267, 7705, 12595, 15343, 16951, 26335, 57937, 76715, 84755, 168773, 289685, 352889, 843865, 1764445, 3881779, 19408895]

約数ペア:

[(1, 19408895), (5, 3881779), (11, 1764445), (23, 843865), (55, 352889), (67, 289685), (115, 168773), (229, 84755), (253, 76715), (335, 57937), (737, 26335), (1145, 16951), (1265, 15343), (1541, 12595), (2519, 7705), (3685, 5267)]