19881952

素因数分解:

$2^5\times {\mathrm{277}}^1\times {\mathrm{2243}}^1$

素因数の和:2530

約数の個数: 24

約数和(自身を含む): 39301416

約数和(自身を除く): 19419464

約数列:

[1, 2, 4, 8, 16, 32, 277, 554, 1108, 2216, 2243, 4432, 4486, 8864, 8972, 17944, 35888, 71776, 621311, 1242622, 2485244, 4970488, 9940976, 19881952]

約数ペア:

[(1, 19881952), (2, 9940976), (4, 4970488), (8, 2485244), (16, 1242622), (32, 621311), (277, 71776), (554, 35888), (1108, 17944), (2216, 8972), (2243, 8864), (4432, 4486)]