21068607

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{16447}}^1$

素因数の和:16518

約数の個数: 16

約数和(自身を含む): 32632832

約数和(自身を除く): 11564225

約数列:

[1, 3, 7, 21, 61, 183, 427, 1281, 16447, 49341, 115129, 345387, 1003267, 3009801, 7022869, 21068607]

約数ペア:

[(1, 21068607), (3, 7022869), (7, 3009801), (21, 1003267), (61, 345387), (183, 115129), (427, 49341), (1281, 16447)]