21390014878

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{641}}^1\times {\mathrm{1663}}^1$

素因数の和:2512

約数の個数: 32

約数和(自身を含む): 32817807360

約数和(自身を除く): 11427792482

約数列:

[1, 2, 79, 127, 158, 254, 641, 1282, 1663, 3326, 10033, 20066, 50639, 81407, 101278, 131377, 162814, 211201, 262754, 422402, 1065983, 2131966, 6431153, 12862306, 16684879, 33369758, 84212657, 135379841, 168425314, 270759682, 10695007439, 21390014878]

約数ペア:

[(1, 21390014878), (2, 10695007439), (79, 270759682), (127, 168425314), (158, 135379841), (254, 84212657), (641, 33369758), (1282, 16684879), (1663, 12862306), (3326, 6431153), (10033, 2131966), (20066, 1065983), (50639, 422402), (81407, 262754), (101278, 211201), (131377, 162814)]