21058665

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{269}}^1\times {\mathrm{307}}^1$

素因数の和:601

約数の個数: 32

約数和(自身を含む): 35925120

約数和(自身を除く): 14866455

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 269, 307, 807, 921, 1345, 1535, 4035, 4573, 4605, 5219, 13719, 15657, 22865, 26095, 68595, 78285, 82583, 247749, 412915, 1238745, 1403911, 4211733, 7019555, 21058665]

約数ペア:

[(1, 21058665), (3, 7019555), (5, 4211733), (15, 1403911), (17, 1238745), (51, 412915), (85, 247749), (255, 82583), (269, 78285), (307, 68595), (807, 26095), (921, 22865), (1345, 15657), (1535, 13719), (4035, 5219), (4573, 4605)]