18721346

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{70381}}^1$

素因数の和:70409

約数の個数: 16

約数和(自身を含む): 33783360

約数和(自身を除く): 15062014

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 70381, 140762, 492667, 985334, 1337239, 2674478, 9360673, 18721346]

約数ペア:

[(1, 18721346), (2, 9360673), (7, 2674478), (14, 1337239), (19, 985334), (38, 492667), (133, 140762), (266, 70381)]