19618885

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1193}}^1$

素因数の和:1245

約数の個数: 32

約数和(自身を含む): 28885248

約数和(自身を除く): 9266363

約数列:

[1, 5, 11, 13, 23, 55, 65, 115, 143, 253, 299, 715, 1193, 1265, 1495, 3289, 5965, 13123, 15509, 16445, 27439, 65615, 77545, 137195, 170599, 301829, 356707, 852995, 1509145, 1783535, 3923777, 19618885]

約数ペア:

[(1, 19618885), (5, 3923777), (11, 1783535), (13, 1509145), (23, 852995), (55, 356707), (65, 301829), (115, 170599), (143, 137195), (253, 77545), (299, 65615), (715, 27439), (1193, 16445), (1265, 15509), (1495, 13123), (3289, 5965)]