19890104

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{191251}}^1$

素因数の和:191270

約数の個数: 16

約数和(自身を含む): 40162920

約数和(自身を除く): 20272816

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 191251, 382502, 765004, 1530008, 2486263, 4972526, 9945052, 19890104]

約数ペア:

[(1, 19890104), (2, 9945052), (4, 4972526), (8, 2486263), (13, 1530008), (26, 765004), (52, 382502), (104, 191251)]