71311359

素因数分解:

$3^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{163}}^1\times {\mathrm{251}}^1$

素因数の和:507

約数の個数: 32

約数和(自身を含む): 111089664

約数和(自身を除く): 39778305

約数列:

[1, 3, 7, 21, 83, 163, 249, 251, 489, 581, 753, 1141, 1743, 1757, 3423, 5271, 13529, 20833, 40587, 40913, 62499, 94703, 122739, 145831, 284109, 286391, 437493, 859173, 3395779, 10187337, 23770453, 71311359]

約数ペア:

[(1, 71311359), (3, 23770453), (7, 10187337), (21, 3395779), (83, 859173), (163, 437493), (249, 286391), (251, 284109), (489, 145831), (581, 122739), (753, 94703), (1141, 62499), (1743, 40913), (1757, 40587), (3423, 20833), (5271, 13529)]