21890362

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{6427}}^1$

素因数の和:6573

約数の個数: 16

約数和(自身を含む): 35636832

約数和(自身を除く): 13746470

約数列:

[1, 2, 13, 26, 131, 262, 1703, 3406, 6427, 12854, 83551, 167102, 841937, 1683874, 10945181, 21890362]

約数ペア:

[(1, 21890362), (2, 10945181), (13, 1683874), (26, 841937), (131, 167102), (262, 83551), (1703, 12854), (3406, 6427)]