197409807

素因数分解:

$3^2\times 7^1\times {\mathrm{1381}}^1\times {\mathrm{2269}}^1$

素因数の和:3663

約数の個数: 24

約数和(自身を含む): 326262560

約数和(自身を除く): 128852753

約数列:

[1, 3, 7, 9, 21, 63, 1381, 2269, 4143, 6807, 9667, 12429, 15883, 20421, 29001, 47649, 87003, 142947, 3133489, 9400467, 21934423, 28201401, 65803269, 197409807]

約数ペア:

[(1, 197409807), (3, 65803269), (7, 28201401), (9, 21934423), (21, 9400467), (63, 3133489), (1381, 142947), (2269, 87003), (4143, 47649), (6807, 29001), (9667, 20421), (12429, 15883)]