28342251

素因数分解:

$3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{5171}}^1$

素因数の和:5216

約数の個数: 32

約数和(自身を含む): 49651200

約数和(自身を除く): 21308949

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 87, 189, 203, 261, 609, 783, 1827, 5171, 5481, 15513, 36197, 46539, 108591, 139617, 149959, 325773, 449877, 977319, 1049713, 1349631, 3149139, 4048893, 9447417, 28342251]

約数ペア:

[(1, 28342251), (3, 9447417), (7, 4048893), (9, 3149139), (21, 1349631), (27, 1049713), (29, 977319), (63, 449877), (87, 325773), (189, 149959), (203, 139617), (261, 108591), (609, 46539), (783, 36197), (1827, 15513), (5171, 5481)]