21161623

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{863}}^1$

素因数の和:1014

約数の個数: 16

約数和(自身を含む): 25214976

約数和(自身を除く): 4053353

約数列:

[1, 7, 31, 113, 217, 791, 863, 3503, 6041, 24521, 26753, 97519, 187271, 682633, 3023089, 21161623]

約数ペア:

[(1, 21161623), (7, 3023089), (31, 682633), (113, 187271), (217, 97519), (791, 26753), (863, 24521), (3503, 6041)]