19972812

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{38707}}^1$

素因数の和:38757

約数の個数: 24

約数和(自身を含む): 47688256

約数和(自身を除く): 27715444

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 38707, 77414, 116121, 154828, 232242, 464484, 1664401, 3328802, 4993203, 6657604, 9986406, 19972812]

約数ペア:

[(1, 19972812), (2, 9986406), (3, 6657604), (4, 4993203), (6, 3328802), (12, 1664401), (43, 464484), (86, 232242), (129, 154828), (172, 116121), (258, 77414), (516, 38707)]