21699795

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{433}}^1$

素因数の和:711

約数の個数: 32

約数和(自身を含む): 37622592

約数和(自身を除く): 15922797

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 257, 433, 771, 1285, 1299, 2165, 3341, 3855, 5629, 6495, 10023, 16705, 16887, 28145, 50115, 84435, 111281, 333843, 556405, 1446653, 1669215, 4339959, 7233265, 21699795]

約数ペア:

[(1, 21699795), (3, 7233265), (5, 4339959), (13, 1669215), (15, 1446653), (39, 556405), (65, 333843), (195, 111281), (257, 84435), (433, 50115), (771, 28145), (1285, 16887), (1299, 16705), (2165, 10023), (3341, 6495), (3855, 5629)]