64720971

素因数分解:

$3^3\times 7^1\times {\mathrm{443}}^1\times {\mathrm{773}}^1$

素因数の和:1232

約数の個数: 32

約数和(自身を含む): 109969920

約数和(自身を除く): 45248949

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 443, 773, 1329, 2319, 3101, 3987, 5411, 6957, 9303, 11961, 16233, 20871, 27909, 48699, 83727, 146097, 342439, 1027317, 2397073, 3081951, 7191219, 9245853, 21573657, 64720971]

約数ペア:

[(1, 64720971), (3, 21573657), (7, 9245853), (9, 7191219), (21, 3081951), (27, 2397073), (63, 1027317), (189, 342439), (443, 146097), (773, 83727), (1329, 48699), (2319, 27909), (3101, 20871), (3987, 16233), (5411, 11961), (6957, 9303)]