128429973

素因数分解:

$3^2\times 7^1\times {\mathrm{823}}^1\times {\mathrm{2477}}^1$

素因数の和:3313

約数の個数: 24

約数和(自身を含む): 212354688

約数和(自身を除く): 83924715

約数列:

[1, 3, 7, 9, 21, 63, 823, 2469, 2477, 5761, 7407, 7431, 17283, 17339, 22293, 51849, 52017, 156051, 2038571, 6115713, 14269997, 18347139, 42809991, 128429973]

約数ペア:

[(1, 128429973), (3, 42809991), (7, 18347139), (9, 14269997), (21, 6115713), (63, 2038571), (823, 156051), (2469, 52017), (2477, 51849), (5761, 22293), (7407, 17339), (7431, 17283)]