21805426

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{409}}^1$

素因数の和:514

約数の個数: 32

約数和(自身を含む): 36604800

約数和(自身を除く): 14799374

約数列:

[1, 2, 19, 23, 38, 46, 61, 122, 409, 437, 818, 874, 1159, 1403, 2318, 2806, 7771, 9407, 15542, 18814, 24949, 26657, 49898, 53314, 178733, 357466, 474031, 573827, 948062, 1147654, 10902713, 21805426]

約数ペア:

[(1, 21805426), (2, 10902713), (19, 1147654), (23, 948062), (38, 573827), (46, 474031), (61, 357466), (122, 178733), (409, 53314), (437, 49898), (818, 26657), (874, 24949), (1159, 18814), (1403, 15542), (2318, 9407), (2806, 7771)]