19659921

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{3583}}^1$

素因数の和:3676

約数の個数: 16

約数和(自身を含む): 27525120

約数和(自身を除く): 7865199

約数列:

[1, 3, 31, 59, 93, 177, 1829, 3583, 5487, 10749, 111073, 211397, 333219, 634191, 6553307, 19659921]

約数ペア:

[(1, 19659921), (3, 6553307), (31, 634191), (59, 333219), (93, 211397), (177, 111073), (1829, 10749), (3583, 5487)]