21867916

素因数分解:

$2^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{6563}}^1$

素因数の和:6598

約数の個数: 36

約数和(自身を含む): 47142648

約数和(自身を除く): 25274732

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 49, 68, 98, 119, 196, 238, 476, 833, 1666, 3332, 6563, 13126, 26252, 45941, 91882, 111571, 183764, 223142, 321587, 446284, 643174, 780997, 1286348, 1561994, 3123988, 5466979, 10933958, 21867916]

約数ペア:

[(1, 21867916), (2, 10933958), (4, 5466979), (7, 3123988), (14, 1561994), (17, 1286348), (28, 780997), (34, 643174), (49, 446284), (68, 321587), (98, 223142), (119, 183764), (196, 111571), (238, 91882), (476, 45941), (833, 26252), (1666, 13126), (3332, 6563)]