17887948

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{821}}^1$

素因数の和:1257

約数の個数: 24

約数和(自身を含む): 33833520

約数和(自身を除く): 15945572

約数列:

[1, 2, 4, 13, 26, 52, 419, 821, 838, 1642, 1676, 3284, 5447, 10673, 10894, 21346, 21788, 42692, 343999, 687998, 1375996, 4471987, 8943974, 17887948]

約数ペア:

[(1, 17887948), (2, 8943974), (4, 4471987), (13, 1375996), (26, 687998), (52, 343999), (419, 42692), (821, 21788), (838, 21346), (1642, 10894), (1676, 10673), (3284, 5447)]