19815693

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{7331}}^1$

素因数の和:7404

約数の個数: 16

約数和(自身を含む): 28506816

約数和(自身を除く): 8691123

約数列:

[1, 3, 17, 51, 53, 159, 901, 2703, 7331, 21993, 124627, 373881, 388543, 1165629, 6605231, 19815693]

約数ペア:

[(1, 19815693), (3, 6605231), (17, 1165629), (51, 388543), (53, 373881), (159, 124627), (901, 21993), (2703, 7331)]