19310317

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1$

素因数の和:213

約数の個数: 32

約数和(自身を含む): 23950080

約数和(自身を除く): 4639763

約数列:

[1, 13, 17, 23, 29, 131, 221, 299, 377, 391, 493, 667, 1703, 2227, 3013, 3799, 5083, 6409, 8671, 11339, 28951, 39169, 49387, 51221, 64583, 87377, 147407, 665873, 839579, 1135901, 1485409, 19310317]

約数ペア:

[(1, 19310317), (13, 1485409), (17, 1135901), (23, 839579), (29, 665873), (131, 147407), (221, 87377), (299, 64583), (377, 51221), (391, 49387), (493, 39169), (667, 28951), (1703, 11339), (2227, 8671), (3013, 6409), (3799, 5083)]