21895804

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{19073}}^1$

素因数の和:19125

約数の個数: 24

約数和(自身を含む): 44862048

約数和(自身を除く): 22966244

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 287, 574, 1148, 19073, 38146, 76292, 133511, 267022, 534044, 781993, 1563986, 3127972, 5473951, 10947902, 21895804]

約数ペア:

[(1, 21895804), (2, 10947902), (4, 5473951), (7, 3127972), (14, 1563986), (28, 781993), (41, 534044), (82, 267022), (164, 133511), (287, 76292), (574, 38146), (1148, 19073)]