21918310

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{233}}^1\times {\mathrm{409}}^1$

素因数の和:672

約数の個数: 32

約数和(自身を含む): 41446080

約数和(自身を除く): 19527770

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 233, 409, 466, 818, 1165, 2045, 2330, 4090, 5359, 9407, 10718, 18814, 26795, 47035, 53590, 94070, 95297, 190594, 476485, 952970, 2191831, 4383662, 10959155, 21918310]

約数ペア:

[(1, 21918310), (2, 10959155), (5, 4383662), (10, 2191831), (23, 952970), (46, 476485), (115, 190594), (230, 95297), (233, 94070), (409, 53590), (466, 47035), (818, 26795), (1165, 18814), (2045, 10718), (2330, 9407), (4090, 5359)]