66878379

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{401}}^1$

素因数の和:513

約数の個数: 40

約数和(自身を含む): 105066720

約数和(自身を除く): 38188341

約数列:

[1, 3, 9, 27, 29, 71, 81, 87, 213, 261, 401, 639, 783, 1203, 1917, 2059, 2349, 3609, 5751, 6177, 10827, 11629, 18531, 28471, 32481, 34887, 55593, 85413, 104661, 166779, 256239, 313983, 768717, 825659, 941949, 2306151, 2476977, 7430931, 22292793, 66878379]

約数ペア:

[(1, 66878379), (3, 22292793), (9, 7430931), (27, 2476977), (29, 2306151), (71, 941949), (81, 825659), (87, 768717), (213, 313983), (261, 256239), (401, 166779), (639, 104661), (783, 85413), (1203, 55593), (1917, 34887), (2059, 32481), (2349, 28471), (3609, 18531), (5751, 11629), (6177, 10827)]