21851770

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1\times {\mathrm{239}}^1$

素因数の和:510

約数の個数: 32

約数和(自身を含む): 40642560

約数和(自身を除く): 18790790

約数列:

[1, 2, 5, 10, 41, 82, 205, 223, 239, 410, 446, 478, 1115, 1195, 2230, 2390, 9143, 9799, 18286, 19598, 45715, 48995, 53297, 91430, 97990, 106594, 266485, 532970, 2185177, 4370354, 10925885, 21851770]

約数ペア:

[(1, 21851770), (2, 10925885), (5, 4370354), (10, 2185177), (41, 532970), (82, 266485), (205, 106594), (223, 97990), (239, 91430), (410, 53297), (446, 48995), (478, 45715), (1115, 19598), (1195, 18286), (2230, 9799), (2390, 9143)]