21864765

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3617}}^1$

素因数の和:3669

約数の個数: 32

約数和(自身を含む): 38900736

約数和(自身を除く): 17035971

約数列:

[1, 3, 5, 13, 15, 31, 39, 65, 93, 155, 195, 403, 465, 1209, 2015, 3617, 6045, 10851, 18085, 47021, 54255, 112127, 141063, 235105, 336381, 560635, 705315, 1457651, 1681905, 4372953, 7288255, 21864765]

約数ペア:

[(1, 21864765), (3, 7288255), (5, 4372953), (13, 1681905), (15, 1457651), (31, 705315), (39, 560635), (65, 336381), (93, 235105), (155, 141063), (195, 112127), (403, 54255), (465, 47021), (1209, 18085), (2015, 10851), (3617, 6045)]