991890818

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{2539}}^1\times {\mathrm{6301}}^1$

素因数の和:8873

約数の個数: 16

約数和(自身を含む): 1536679680

約数和(自身を除く): 544788862

約数列:

[1, 2, 31, 62, 2539, 5078, 6301, 12602, 78709, 157418, 195331, 390662, 15998239, 31996478, 495945409, 991890818]

約数ペア:

[(1, 991890818), (2, 495945409), (31, 31996478), (62, 15998239), (2539, 390662), (5078, 195331), (6301, 157418), (12602, 78709)]