21831635

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{157}}^1$

素因数の和:335

約数の個数: 32

約数和(自身を含む): 31397760

約数和(自身を除く): 9566125

約数列:

[1, 5, 7, 29, 35, 137, 145, 157, 203, 685, 785, 959, 1015, 1099, 3973, 4553, 4795, 5495, 19865, 21509, 22765, 27811, 31871, 107545, 139055, 150563, 159355, 623761, 752815, 3118805, 4366327, 21831635]

約数ペア:

[(1, 21831635), (5, 4366327), (7, 3118805), (29, 752815), (35, 623761), (137, 159355), (145, 150563), (157, 139055), (203, 107545), (685, 31871), (785, 27811), (959, 22765), (1015, 21509), (1099, 19865), (3973, 5495), (4553, 4795)]