261617369

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{283}}^1$

素因数の和:449

約数の個数: 32

約数和(自身を含む): 309173760

約数和(自身を除く): 47556391

約数列:

[1, 13, 17, 47, 89, 221, 283, 611, 799, 1157, 1513, 3679, 4183, 4811, 10387, 13301, 19669, 25187, 54379, 62543, 71111, 172913, 226117, 327431, 428179, 924443, 1183789, 2939521, 5566327, 15389257, 20124413, 261617369]

約数ペア:

[(1, 261617369), (13, 20124413), (17, 15389257), (47, 5566327), (89, 2939521), (221, 1183789), (283, 924443), (611, 428179), (799, 327431), (1157, 226117), (1513, 172913), (3679, 71111), (4183, 62543), (4811, 54379), (10387, 25187), (13301, 19669)]