21791302

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{487}}^1\times {\mathrm{1721}}^1$

素因数の和:2223

約数の個数: 16

約数和(自身を含む): 35294112

約数和(自身を除く): 13502810

約数列:

[1, 2, 13, 26, 487, 974, 1721, 3442, 6331, 12662, 22373, 44746, 838127, 1676254, 10895651, 21791302]

約数ペア:

[(1, 21791302), (2, 10895651), (13, 1676254), (26, 838127), (487, 44746), (974, 22373), (1721, 12662), (3442, 6331)]