19969796

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2819}}^1$

素因数の和:2864

約数の個数: 48

約数和(自身を含む): 45480960

約数和(自身を除く): 25511164

約数列:

[1, 2, 4, 7, 11, 14, 22, 23, 28, 44, 46, 77, 92, 154, 161, 253, 308, 322, 506, 644, 1012, 1771, 2819, 3542, 5638, 7084, 11276, 19733, 31009, 39466, 62018, 64837, 78932, 124036, 129674, 217063, 259348, 434126, 453859, 713207, 868252, 907718, 1426414, 1815436, 2852828, 4992449, 9984898, 19969796]

約数ペア:

[(1, 19969796), (2, 9984898), (4, 4992449), (7, 2852828), (11, 1815436), (14, 1426414), (22, 907718), (23, 868252), (28, 713207), (44, 453859), (46, 434126), (77, 259348), (92, 217063), (154, 129674), (161, 124036), (253, 78932), (308, 64837), (322, 62018), (506, 39466), (644, 31009), (1012, 19733), (1771, 11276), (2819, 7084), (3542, 5638)]