28112679

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{26249}}^1$

素因数の和:26279

約数の個数: 24

約数和(自身を含む): 49140000

約数和(自身を除く): 21027321

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 26249, 78747, 183743, 236241, 446233, 551229, 1338699, 1653687, 3123631, 4016097, 9370893, 28112679]

約数ペア:

[(1, 28112679), (3, 9370893), (7, 4016097), (9, 3123631), (17, 1653687), (21, 1338699), (51, 551229), (63, 446233), (119, 236241), (153, 183743), (357, 78747), (1071, 26249)]