19906549

素因数分解:

${\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{239}}^1$

素因数の和:444

約数の個数: 16

約数和(自身を含む): 22176000

約数和(自身を除く): 2269451

約数列:

[1, 13, 43, 149, 239, 559, 1937, 3107, 6407, 10277, 35611, 83291, 133601, 462943, 1531273, 19906549]

約数ペア:

[(1, 19906549), (13, 1531273), (43, 462943), (149, 133601), (239, 83291), (559, 35611), (1937, 10277), (3107, 6407)]