21273380

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{9413}}^1$

素因数の和:9535

約数の個数: 24

約数和(自身を含む): 45074232

約数和(自身を除く): 23800852

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 9413, 18826, 37652, 47065, 94130, 188260, 1063669, 2127338, 4254676, 5318345, 10636690, 21273380]

約数ペア:

[(1, 21273380), (2, 10636690), (4, 5318345), (5, 4254676), (10, 2127338), (20, 1063669), (113, 188260), (226, 94130), (452, 47065), (565, 37652), (1130, 18826), (2260, 9413)]