21988814

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{277}}^1\times {\mathrm{2089}}^1$

素因数の和:2387

約数の個数: 16

約数和(自身を含む): 34861200

約数和(自身を除く): 12872386

約数列:

[1, 2, 19, 38, 277, 554, 2089, 4178, 5263, 10526, 39691, 79382, 578653, 1157306, 10994407, 21988814]

約数ペア:

[(1, 21988814), (2, 10994407), (19, 1157306), (38, 578653), (277, 79382), (554, 39691), (2089, 10526), (4178, 5263)]