21168140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{151201}}^1$

素因数の和:151217

約数の個数: 24

約数和(自身を含む): 50803872

約数和(自身を除く): 29635732

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 151201, 302402, 604804, 756005, 1058407, 1512010, 2116814, 3024020, 4233628, 5292035, 10584070, 21168140]

約数ペア:

[(1, 21168140), (2, 10584070), (4, 5292035), (5, 4233628), (7, 3024020), (10, 2116814), (14, 1512010), (20, 1058407), (28, 756005), (35, 604804), (70, 302402), (140, 151201)]