28413021

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{523}}^1$

素因数の和:745

約数の個数: 32

約数和(自身を含む): 46950400

約数和(自身を除く): 18537379

約数列:

[1, 3, 7, 13, 21, 39, 91, 199, 273, 523, 597, 1393, 1569, 2587, 3661, 4179, 6799, 7761, 10983, 18109, 20397, 47593, 54327, 104077, 142779, 312231, 728539, 1353001, 2185617, 4059003, 9471007, 28413021]

約数ペア:

[(1, 28413021), (3, 9471007), (7, 4059003), (13, 2185617), (21, 1353001), (39, 728539), (91, 312231), (199, 142779), (273, 104077), (523, 54327), (597, 47593), (1393, 20397), (1569, 18109), (2587, 10983), (3661, 7761), (4179, 6799)]