21396543

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{16703}}^1$

素因数の和:16774

約数の個数: 16

約数和(自身を含む): 33140736

約数和(自身を除く): 11744193

約数列:

[1, 3, 7, 21, 61, 183, 427, 1281, 16703, 50109, 116921, 350763, 1018883, 3056649, 7132181, 21396543]

約数ペア:

[(1, 21396543), (3, 7132181), (7, 3056649), (21, 1018883), (61, 350763), (183, 116921), (427, 50109), (1281, 16703)]