21497973

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{33023}}^1$

素因数の和:33064

約数の個数: 16

約数和(自身を含む): 33816576

約数和(自身を除く): 12318603

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 33023, 99069, 231161, 693483, 1023713, 3071139, 7165991, 21497973]

約数ペア:

[(1, 21497973), (3, 7165991), (7, 3071139), (21, 1023713), (31, 693483), (93, 231161), (217, 99069), (651, 33023)]