28445319

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{293}}^1$

素因数の和:396

約数の個数: 48

約数和(自身を含む): 49900032

約数和(自身を除く): 21454713

約数列:

[1, 3, 7, 9, 21, 23, 63, 67, 69, 161, 201, 207, 293, 469, 483, 603, 879, 1407, 1449, 1541, 2051, 2637, 4221, 4623, 6153, 6739, 10787, 13869, 18459, 19631, 20217, 32361, 47173, 58893, 60651, 97083, 137417, 141519, 176679, 412251, 424557, 451513, 1236753, 1354539, 3160591, 4063617, 9481773, 28445319]

約数ペア:

[(1, 28445319), (3, 9481773), (7, 4063617), (9, 3160591), (21, 1354539), (23, 1236753), (63, 451513), (67, 424557), (69, 412251), (161, 176679), (201, 141519), (207, 137417), (293, 97083), (469, 60651), (483, 58893), (603, 47173), (879, 32361), (1407, 20217), (1449, 19631), (1541, 18459), (2051, 13869), (2637, 10787), (4221, 6739), (4623, 6153)]