21242104

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{204251}}^1$

素因数の和:204270

約数の個数: 16

約数和(自身を含む): 42892920

約数和(自身を除く): 21650816

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 204251, 408502, 817004, 1634008, 2655263, 5310526, 10621052, 21242104]

約数ペア:

[(1, 21242104), (2, 10621052), (4, 5310526), (8, 2655263), (13, 1634008), (26, 817004), (52, 408502), (104, 204251)]