21333584

素因数分解:

$2^4\times {\mathrm{1129}}^1\times {\mathrm{1181}}^1$

素因数の和:2318

約数の個数: 20

約数和(自身を含む): 41405460

約数和(自身を除く): 20071876

約数列:

[1, 2, 4, 8, 16, 1129, 1181, 2258, 2362, 4516, 4724, 9032, 9448, 18064, 18896, 1333349, 2666698, 5333396, 10666792, 21333584]

約数ペア:

[(1, 21333584), (2, 10666792), (4, 5333396), (8, 2666698), (16, 1333349), (1129, 18896), (1181, 18064), (2258, 9448), (2362, 9032), (4516, 4724)]