28861389

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{2081}}^1$

素因数の和:2177

約数の個数: 24

約数和(自身を含む): 44171712

約数和(自身を除く): 15310323

約数列:

[1, 3, 9, 23, 67, 69, 201, 207, 603, 1541, 2081, 4623, 6243, 13869, 18729, 47863, 139427, 143589, 418281, 430767, 1254843, 3206821, 9620463, 28861389]

約数ペア:

[(1, 28861389), (3, 9620463), (9, 3206821), (23, 1254843), (67, 430767), (69, 418281), (201, 143589), (207, 139427), (603, 47863), (1541, 18729), (2081, 13869), (4623, 6243)]