638501479839

素因数分解:

$3^4\times {\mathrm{193}}^1\times {\mathrm{40843183}}^1$

素因数の和:40843388

約数の個数: 20

約数和(自身を含む): 958752901216

約数和(自身を除く): 320251421377

約数列:

[1, 3, 9, 27, 81, 193, 579, 1737, 5211, 15633, 40843183, 122529549, 367588647, 1102765941, 3308297823, 7882734319, 23648202957, 70944608871, 212833826613, 638501479839]

約数ペア:

[(1, 638501479839), (3, 212833826613), (9, 70944608871), (27, 23648202957), (81, 7882734319), (193, 3308297823), (579, 1102765941), (1737, 367588647), (5211, 122529549), (15633, 40843183)]