247257647

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{4447}}^1$

素因数の和:4527

約数の個数: 24

約数和(自身を含む): 312569856

約数和(自身を除く): 65312209

約数列:

[1, 7, 13, 47, 91, 169, 329, 611, 1183, 4277, 4447, 7943, 31129, 55601, 57811, 209009, 404677, 751543, 1463063, 2717117, 5260801, 19019819, 35322521, 247257647]

約数ペア:

[(1, 247257647), (7, 35322521), (13, 19019819), (47, 5260801), (91, 2717117), (169, 1463063), (329, 751543), (611, 404677), (1183, 209009), (4277, 57811), (4447, 55601), (7943, 31129)]