21229964

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{18493}}^1$

素因数の和:18545

約数の個数: 24

約数和(自身を含む): 43497888

約数和(自身を除く): 22267924

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 287, 574, 1148, 18493, 36986, 73972, 129451, 258902, 517804, 758213, 1516426, 3032852, 5307491, 10614982, 21229964]

約数ペア:

[(1, 21229964), (2, 10614982), (4, 5307491), (7, 3032852), (14, 1516426), (28, 758213), (41, 517804), (82, 258902), (164, 129451), (287, 73972), (574, 36986), (1148, 18493)]