21658862

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{271}}^1\times {\mathrm{449}}^1$

素因数の和:811

約数の個数: 16

約数和(自身を含む): 33048000

約数和(自身を除く): 11389138

約数列:

[1, 2, 89, 178, 271, 449, 542, 898, 24119, 39961, 48238, 79922, 121679, 243358, 10829431, 21658862]

約数ペア:

[(1, 21658862), (2, 10829431), (89, 243358), (178, 121679), (271, 79922), (449, 48238), (542, 39961), (898, 24119)]