19697315

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{677}}^1$

素因数の和:739

約数の個数: 24

約数和(自身を含む): 26995248

約数和(自身を除く): 7297933

約数列:

[1, 5, 11, 23, 55, 115, 253, 529, 677, 1265, 2645, 3385, 5819, 7447, 15571, 29095, 37235, 77855, 171281, 358133, 856405, 1790665, 3939463, 19697315]

約数ペア:

[(1, 19697315), (5, 3939463), (11, 1790665), (23, 856405), (55, 358133), (115, 171281), (253, 77855), (529, 37235), (677, 29095), (1265, 15571), (2645, 7447), (3385, 5819)]