13408213

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:162

約数の個数: 32

約数和(自身を含む): 17561600

約数和(自身を除く): 4153387

約数列:

[1, 7, 13, 31, 49, 91, 97, 217, 343, 403, 637, 679, 1261, 1519, 2821, 3007, 4459, 4753, 8827, 10633, 19747, 21049, 33271, 39091, 61789, 138229, 147343, 273637, 432523, 1031401, 1915459, 13408213]

約数ペア:

[(1, 13408213), (7, 1915459), (13, 1031401), (31, 432523), (49, 273637), (91, 147343), (97, 138229), (217, 61789), (343, 39091), (403, 33271), (637, 21049), (679, 19747), (1261, 10633), (1519, 8827), (2821, 4753), (3007, 4459)]