21963520

素因数分解:

$2^8\times 5^1\times {\mathrm{17159}}^1$

素因数の和:17180

約数の個数: 36

約数和(自身を含む): 52612560

約数和(自身を除く): 30649040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 17159, 34318, 68636, 85795, 137272, 171590, 274544, 343180, 549088, 686360, 1098176, 1372720, 2196352, 2745440, 4392704, 5490880, 10981760, 21963520]

約数ペア:

[(1, 21963520), (2, 10981760), (4, 5490880), (5, 4392704), (8, 2745440), (10, 2196352), (16, 1372720), (20, 1098176), (32, 686360), (40, 549088), (64, 343180), (80, 274544), (128, 171590), (160, 137272), (256, 85795), (320, 68636), (640, 34318), (1280, 17159)]