7821387

素因数分解:

$3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1427}}^1$

素因数の和:1472

約数の個数: 32

約数和(自身を含む): 13708800

約数和(自身を除く): 5887413

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 87, 189, 203, 261, 609, 783, 1427, 1827, 4281, 5481, 9989, 12843, 29967, 38529, 41383, 89901, 124149, 269703, 289681, 372447, 869043, 1117341, 2607129, 7821387]

約数ペア:

[(1, 7821387), (3, 2607129), (7, 1117341), (9, 869043), (21, 372447), (27, 289681), (29, 269703), (63, 124149), (87, 89901), (189, 41383), (203, 38529), (261, 29967), (609, 12843), (783, 9989), (1427, 5481), (1827, 4281)]