21049961

素因数分解:

${\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{677}}^1$

素因数の和:784

約数の個数: 16

約数和(自身を含む): 23431680

約数和(自身を除く): 2381719

約数列:

[1, 17, 31, 59, 527, 677, 1003, 1829, 11509, 20987, 31093, 39943, 356779, 679031, 1238233, 21049961]

約数ペア:

[(1, 21049961), (17, 1238233), (31, 679031), (59, 356779), (527, 39943), (677, 31093), (1003, 20987), (1829, 11509)]