21138494

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{4127}}^1$

素因数の和:4339

約数の個数: 16

約数和(自身を含む): 34328448

約数和(自身を除く): 13189954

約数列:

[1, 2, 13, 26, 197, 394, 2561, 4127, 5122, 8254, 53651, 107302, 813019, 1626038, 10569247, 21138494]

約数ペア:

[(1, 21138494), (2, 10569247), (13, 1626038), (26, 813019), (197, 107302), (394, 53651), (2561, 8254), (4127, 5122)]