21867495

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{883}}^1$

素因数の和:1031

約数の個数: 32

約数和(自身を含む): 38019072

約数和(自身を除く): 16151577

約数列:

[1, 3, 5, 13, 15, 39, 65, 127, 195, 381, 635, 883, 1651, 1905, 2649, 4415, 4953, 8255, 11479, 13245, 24765, 34437, 57395, 112141, 172185, 336423, 560705, 1457833, 1682115, 4373499, 7289165, 21867495]

約数ペア:

[(1, 21867495), (3, 7289165), (5, 4373499), (13, 1682115), (15, 1457833), (39, 560705), (65, 336423), (127, 172185), (195, 112141), (381, 57395), (635, 34437), (883, 24765), (1651, 13245), (1905, 11479), (2649, 8255), (4415, 4953)]