21777289

素因数分解:

${\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1\times {\mathrm{271}}^1$

素因数の和:480

約数の個数: 16

約数和(自身を含む): 24088320

約数和(自身を除く): 2311031

約数列:

[1, 17, 29, 163, 271, 493, 2771, 4607, 4727, 7859, 44173, 80359, 133603, 750941, 1281017, 21777289]

約数ペア:

[(1, 21777289), (17, 1281017), (29, 750941), (163, 133603), (271, 80359), (493, 44173), (2771, 7859), (4607, 4727)]