21061760

素因数分解:

$2^7\times 5^1\times {\mathrm{32909}}^1$

素因数の和:32928

約数の個数: 32

約数和(自身を含む): 50352300

約数和(自身を除く): 29290540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 32909, 65818, 131636, 164545, 263272, 329090, 526544, 658180, 1053088, 1316360, 2106176, 2632720, 4212352, 5265440, 10530880, 21061760]

約数ペア:

[(1, 21061760), (2, 10530880), (4, 5265440), (5, 4212352), (8, 2632720), (10, 2106176), (16, 1316360), (20, 1053088), (32, 658180), (40, 526544), (64, 329090), (80, 263272), (128, 164545), (160, 131636), (320, 65818), (640, 32909)]