21824397

素因数分解:

$3^4\times 7^1\times {\mathrm{61}}^1\times {\mathrm{631}}^1$

素因数の和:711

約数の個数: 40

約数和(自身を含む): 37930112

約数和(自身を除く): 16105715

約数列:

[1, 3, 7, 9, 21, 27, 61, 63, 81, 183, 189, 427, 549, 567, 631, 1281, 1647, 1893, 3843, 4417, 4941, 5679, 11529, 13251, 17037, 34587, 38491, 39753, 51111, 115473, 119259, 269437, 346419, 357777, 808311, 1039257, 2424933, 3117771, 7274799, 21824397]

約数ペア:

[(1, 21824397), (3, 7274799), (7, 3117771), (9, 2424933), (21, 1039257), (27, 808311), (61, 357777), (63, 346419), (81, 269437), (183, 119259), (189, 115473), (427, 51111), (549, 39753), (567, 38491), (631, 34587), (1281, 17037), (1647, 13251), (1893, 11529), (3843, 5679), (4417, 4941)]