21064130

素因数分解:

$2^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1\times {\mathrm{211}}^1$

素因数の和:434

約数の個数: 32

約数和(自身を含む): 38923200

約数和(自身を除く): 17859070

約数列:

[1, 2, 5, 10, 67, 134, 149, 211, 298, 335, 422, 670, 745, 1055, 1490, 2110, 9983, 14137, 19966, 28274, 31439, 49915, 62878, 70685, 99830, 141370, 157195, 314390, 2106413, 4212826, 10532065, 21064130]

約数ペア:

[(1, 21064130), (2, 10532065), (5, 4212826), (10, 2106413), (67, 314390), (134, 157195), (149, 141370), (211, 99830), (298, 70685), (335, 62878), (422, 49915), (670, 31439), (745, 28274), (1055, 19966), (1490, 14137), (2110, 9983)]