28780519719

素因数分解:

$3^1\times 7^1\times {\mathrm{1279}}^1\times {\mathrm{1071541}}^1$

素因数の和:1072830

約数の個数: 16

約数和(自身を含む): 43890360320

約数和(自身を除く): 15109840601

約数列:

[1, 3, 7, 21, 1279, 3837, 8953, 26859, 1071541, 3214623, 7500787, 22502361, 1370500939, 4111502817, 9593506573, 28780519719]

約数ペア:

[(1, 28780519719), (3, 9593506573), (7, 4111502817), (21, 1370500939), (1279, 22502361), (3837, 7500787), (8953, 3214623), (26859, 1071541)]