20959755

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{293}}^1$

素因数の和:571

約数の個数: 32

約数和(自身を含む): 35562240

約数和(自身を除く): 14602485

約数列:

[1, 3, 5, 15, 19, 57, 95, 251, 285, 293, 753, 879, 1255, 1465, 3765, 4395, 4769, 5567, 14307, 16701, 23845, 27835, 71535, 73543, 83505, 220629, 367715, 1103145, 1397317, 4191951, 6986585, 20959755]

約数ペア:

[(1, 20959755), (3, 6986585), (5, 4191951), (15, 1397317), (19, 1103145), (57, 367715), (95, 220629), (251, 83505), (285, 73543), (293, 71535), (753, 27835), (879, 23845), (1255, 16701), (1465, 14307), (3765, 5567), (4395, 4769)]