840377997

素因数分解:

$3^4\times {\mathrm{577}}^1\times {\mathrm{17981}}^1$

素因数の和:18570

約数の個数: 20

約数和(自身を含む): 1257625116

約数和(自身を除く): 417247119

約数列:

[1, 3, 9, 27, 81, 577, 1731, 5193, 15579, 17981, 46737, 53943, 161829, 485487, 1456461, 10375037, 31125111, 93375333, 280125999, 840377997]

約数ペア:

[(1, 840377997), (3, 280125999), (9, 93375333), (27, 31125111), (81, 10375037), (577, 1456461), (1731, 485487), (5193, 161829), (15579, 53943), (17981, 46737)]