21229479

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1427}}^1$

素因数の和:1484

約数の個数: 32

約数和(自身を含む): 34272000

約数和(自身を除く): 13042521

約数列:

[1, 3, 9, 19, 27, 29, 57, 87, 171, 261, 513, 551, 783, 1427, 1653, 4281, 4959, 12843, 14877, 27113, 38529, 41383, 81339, 124149, 244017, 372447, 732051, 786277, 1117341, 2358831, 7076493, 21229479]

約数ペア:

[(1, 21229479), (3, 7076493), (9, 2358831), (19, 1117341), (27, 786277), (29, 732051), (57, 372447), (87, 244017), (171, 124149), (261, 81339), (513, 41383), (551, 38529), (783, 27113), (1427, 14877), (1653, 12843), (4281, 4959)]