19389095

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{233}}^1$

素因数の和:355

約数の個数: 32

約数和(自身を含む): 27293760

約数和(自身を除く): 7904665

約数列:

[1, 5, 11, 17, 55, 85, 89, 187, 233, 445, 935, 979, 1165, 1513, 2563, 3961, 4895, 7565, 12815, 16643, 19805, 20737, 43571, 83215, 103685, 217855, 228107, 352529, 1140535, 1762645, 3877819, 19389095]

約数ペア:

[(1, 19389095), (5, 3877819), (11, 1762645), (17, 1140535), (55, 352529), (85, 228107), (89, 217855), (187, 103685), (233, 83215), (445, 43571), (935, 20737), (979, 19805), (1165, 16643), (1513, 12815), (2563, 7565), (3961, 4895)]