161856345

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{81131}}^1$

素因数の和:81165

約数の個数: 32

約数和(自身を含む): 311546880

約数和(自身を除く): 149690535

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 399, 665, 1995, 81131, 243393, 405655, 567917, 1216965, 1541489, 1703751, 2839585, 4624467, 7707445, 8518755, 10790423, 23122335, 32371269, 53952115, 161856345]

約数ペア:

[(1, 161856345), (3, 53952115), (5, 32371269), (7, 23122335), (15, 10790423), (19, 8518755), (21, 7707445), (35, 4624467), (57, 2839585), (95, 1703751), (105, 1541489), (133, 1216965), (285, 567917), (399, 405655), (665, 243393), (1995, 81131)]