51221901

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{23357}}^1$

素因数の和:23420

約数の個数: 16

約数和(自身を含む): 73998144

約数和(自身を除く): 22776243

約数列:

[1, 3, 17, 43, 51, 129, 731, 2193, 23357, 70071, 397069, 1004351, 1191207, 3013053, 17073967, 51221901]

約数ペア:

[(1, 51221901), (3, 17073967), (17, 3013053), (43, 1191207), (51, 1004351), (129, 397069), (731, 70071), (2193, 23357)]