21345387

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59791}}^1$

素因数の和:59818

約数の個数: 16

約数和(自身を含む): 34440192

約数和(自身を除く): 13094805

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 59791, 179373, 418537, 1016447, 1255611, 3049341, 7115129, 21345387]

約数ペア:

[(1, 21345387), (3, 7115129), (7, 3049341), (17, 1255611), (21, 1016447), (51, 418537), (119, 179373), (357, 59791)]