17217921

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{13441}}^1$

素因数の和:13512

約数の個数: 16

約数和(自身を含む): 26668928

約数和(自身を除く): 9451007

約数列:

[1, 3, 7, 21, 61, 183, 427, 1281, 13441, 40323, 94087, 282261, 819901, 2459703, 5739307, 17217921]

約数ペア:

[(1, 17217921), (3, 5739307), (7, 2459703), (21, 819901), (61, 282261), (183, 94087), (427, 40323), (1281, 13441)]