21000756033

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{467}}^1\times {\mathrm{17909}}^1$

素因数の和:18419

約数の個数: 40

約数和(自身を含む): 32454639360

約数和(自身を除く): 11453883327

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 467, 837, 1401, 2511, 4203, 12609, 14477, 17909, 37827, 43431, 53727, 130293, 161181, 390879, 483543, 555179, 1172637, 1450629, 1665537, 4996611, 8363503, 14989833, 25090509, 44969499, 75271527, 225814581, 259268593, 677443743, 777805779, 2333417337, 7000252011, 21000756033]

約数ペア:

[(1, 21000756033), (3, 7000252011), (9, 2333417337), (27, 777805779), (31, 677443743), (81, 259268593), (93, 225814581), (279, 75271527), (467, 44969499), (837, 25090509), (1401, 14989833), (2511, 8363503), (4203, 4996611), (12609, 1665537), (14477, 1450629), (17909, 1172637), (37827, 555179), (43431, 483543), (53727, 390879), (130293, 161181)]