20840122

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{7817}}^1$

素因数の和:7893

約数の個数: 16

約数和(自身を含む): 33023232

約数和(自身を除く): 12183110

約数列:

[1, 2, 31, 43, 62, 86, 1333, 2666, 7817, 15634, 242327, 336131, 484654, 672262, 10420061, 20840122]

約数ペア:

[(1, 20840122), (2, 10420061), (31, 672262), (43, 484654), (62, 336131), (86, 242327), (1333, 15634), (2666, 7817)]