21139001

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^2$

素因数の和:177

約数の個数: 24

約数和(自身を含む): 25421760

約数和(自身を除く): 4282759

約数列:

[1, 13, 19, 23, 61, 247, 299, 437, 793, 1159, 1403, 3721, 5681, 15067, 18239, 26657, 48373, 70699, 85583, 346541, 919087, 1112579, 1626077, 21139001]

約数ペア:

[(1, 21139001), (13, 1626077), (19, 1112579), (23, 919087), (61, 346541), (247, 85583), (299, 70699), (437, 48373), (793, 26657), (1159, 18239), (1403, 15067), (3721, 5681)]