21727760

素因数分解:

$2^4\times 5^1\times {\mathrm{271597}}^1$

素因数の和:271610

約数の個数: 20

約数和(自身を含む): 50517228

約数和(自身を除く): 28789468

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 271597, 543194, 1086388, 1357985, 2172776, 2715970, 4345552, 5431940, 10863880, 21727760]

約数ペア:

[(1, 21727760), (2, 10863880), (4, 5431940), (5, 4345552), (8, 2715970), (10, 2172776), (16, 1357985), (20, 1086388), (40, 543194), (80, 271597)]