217215189

素因数分解:

$3^4\times {\mathrm{367}}^1\times {\mathrm{7307}}^1$

素因数の和:7686

約数の個数: 20

約数和(自身を含む): 325410624

約数和(自身を除く): 108195435

約数列:

[1, 3, 9, 27, 81, 367, 1101, 3303, 7307, 9909, 21921, 29727, 65763, 197289, 591867, 2681669, 8045007, 24135021, 72405063, 217215189]

約数ペア:

[(1, 217215189), (3, 72405063), (9, 24135021), (27, 8045007), (81, 2681669), (367, 591867), (1101, 197289), (3303, 65763), (7307, 29727), (9909, 21921)]