19977735

素因数分解:

$3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{10487}}^1$

素因数の和:10622

約数の個数: 16

約数和(自身を含む): 32219136

約数和(自身を除く): 12241401

約数列:

[1, 3, 5, 15, 127, 381, 635, 1905, 10487, 31461, 52435, 157305, 1331849, 3995547, 6659245, 19977735]

約数ペア:

[(1, 19977735), (3, 6659245), (5, 3995547), (15, 1331849), (127, 157305), (381, 52435), (635, 31461), (1905, 10487)]