21693921

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{5827}}^1$

素因数の和:5920

約数の個数: 16

約数和(自身を含む): 31051584

約数和(自身を除く): 9357663

約数列:

[1, 3, 17, 51, 73, 219, 1241, 3723, 5827, 17481, 99059, 297177, 425371, 1276113, 7231307, 21693921]

約数ペア:

[(1, 21693921), (3, 7231307), (17, 1276113), (51, 425371), (73, 297177), (219, 99059), (1241, 17481), (3723, 5827)]