21328118

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{509}}^1$

素因数の和:632

約数の個数: 32

約数和(自身を含む): 38041920

約数和(自身を除く): 16713802

約数列:

[1, 2, 7, 14, 41, 73, 82, 146, 287, 509, 511, 574, 1018, 1022, 2993, 3563, 5986, 7126, 20869, 20951, 37157, 41738, 41902, 74314, 146083, 260099, 292166, 520198, 1523437, 3046874, 10664059, 21328118]

約数ペア:

[(1, 21328118), (2, 10664059), (7, 3046874), (14, 1523437), (41, 520198), (73, 292166), (82, 260099), (146, 146083), (287, 74314), (509, 41902), (511, 41738), (574, 37157), (1018, 20951), (1022, 20869), (2993, 7126), (3563, 5986)]