21015537

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{4993}}^1$

素因数の和:5080

約数の個数: 16

約数和(自身を含む): 29724288

約数和(自身を除く): 8708751

約数列:

[1, 3, 23, 61, 69, 183, 1403, 4209, 4993, 14979, 114839, 304573, 344517, 913719, 7005179, 21015537]

約数ペア:

[(1, 21015537), (3, 7005179), (23, 913719), (61, 344517), (69, 304573), (183, 114839), (1403, 14979), (4209, 4993)]