21054831

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{52769}}^1$

素因数の和:52798

約数の個数: 16

約数和(自身を含む): 33772800

約数和(自身を除く): 12717969

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 52769, 158307, 369383, 1002611, 1108149, 3007833, 7018277, 21054831]

約数ペア:

[(1, 21054831), (3, 7018277), (7, 3007833), (19, 1108149), (21, 1002611), (57, 369383), (133, 158307), (399, 52769)]