21069917

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1381}}^1$

素因数の和:1484

約数の個数: 16

約数和(自身を含む): 24544320

約数和(自身を除く): 3474403

約数列:

[1, 11, 19, 73, 209, 803, 1381, 1387, 15191, 15257, 26239, 100813, 288629, 1108943, 1915447, 21069917]

約数ペア:

[(1, 21069917), (11, 1915447), (19, 1108943), (73, 288629), (209, 100813), (803, 26239), (1381, 15257), (1387, 15191)]