21222585

素因数分解:

$3^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{7039}}^1$

素因数の和:7117

約数の個数: 24

約数和(自身を含む): 37340160

約数和(自身を除く): 16117575

約数列:

[1, 3, 5, 9, 15, 45, 67, 201, 335, 603, 1005, 3015, 7039, 21117, 35195, 63351, 105585, 316755, 471613, 1414839, 2358065, 4244517, 7074195, 21222585]

約数ペア:

[(1, 21222585), (3, 7074195), (5, 4244517), (9, 2358065), (15, 1414839), (45, 471613), (67, 316755), (201, 105585), (335, 63351), (603, 35195), (1005, 21117), (3015, 7039)]