19681401

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{5261}}^1$

素因数の和:5336

約数の個数: 16

約数和(自身を含む): 27783360

約数和(自身を除く): 8101959

約数列:

[1, 3, 29, 43, 87, 129, 1247, 3741, 5261, 15783, 152569, 226223, 457707, 678669, 6560467, 19681401]

約数ペア:

[(1, 19681401), (3, 6560467), (29, 678669), (43, 457707), (87, 226223), (129, 152569), (1247, 15783), (3741, 5261)]