21956605

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1021}}^1$

素因数の和:1077

約数の個数: 32

約数和(自身を含む): 31788288

約数和(自身を除く): 9831683

約数列:

[1, 5, 11, 17, 23, 55, 85, 115, 187, 253, 391, 935, 1021, 1265, 1955, 4301, 5105, 11231, 17357, 21505, 23483, 56155, 86785, 117415, 190927, 258313, 399211, 954635, 1291565, 1996055, 4391321, 21956605]

約数ペア:

[(1, 21956605), (5, 4391321), (11, 1996055), (17, 1291565), (23, 954635), (55, 399211), (85, 258313), (115, 190927), (187, 117415), (253, 86785), (391, 56155), (935, 23483), (1021, 21505), (1265, 17357), (1955, 11231), (4301, 5105)]