991808438

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{108347}}^1$

素因数の和:108571

約数の個数: 16

約数和(自身を含む): 1560211200

約数和(自身を除く): 568402762

約数列:

[1, 2, 23, 46, 199, 398, 4577, 9154, 108347, 216694, 2491981, 4983962, 21561053, 43122106, 495904219, 991808438]

約数ペア:

[(1, 991808438), (2, 495904219), (23, 43122106), (46, 21561053), (199, 4983962), (398, 2491981), (4577, 216694), (9154, 108347)]