21901760

素因数分解:

$2^6\times 5^1\times {\mathrm{68443}}^1$

素因数の和:68460

約数の個数: 28

約数和(自身を含む): 52154328

約数和(自身を除く): 30252568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 68443, 136886, 273772, 342215, 547544, 684430, 1095088, 1368860, 2190176, 2737720, 4380352, 5475440, 10950880, 21901760]

約数ペア:

[(1, 21901760), (2, 10950880), (4, 5475440), (5, 4380352), (8, 2737720), (10, 2190176), (16, 1368860), (20, 1095088), (32, 684430), (40, 547544), (64, 342215), (80, 273772), (160, 136886), (320, 68443)]