21913595

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1019}}^1$

素因数の和:1075

約数の個数: 32

約数和(自身を含む): 31726080

約数和(自身を除く): 9812485

約数列:

[1, 5, 11, 17, 23, 55, 85, 115, 187, 253, 391, 935, 1019, 1265, 1955, 4301, 5095, 11209, 17323, 21505, 23437, 56045, 86615, 117185, 190553, 257807, 398429, 952765, 1289035, 1992145, 4382719, 21913595]

約数ペア:

[(1, 21913595), (5, 4382719), (11, 1992145), (17, 1289035), (23, 952765), (55, 398429), (85, 257807), (115, 190553), (187, 117185), (253, 86615), (391, 56045), (935, 23437), (1019, 21505), (1265, 17323), (1955, 11209), (4301, 5095)]