21361995

素因数分解:

$3^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2003}}^1$

素因数の和:2096

約数の個数: 32

約数和(自身を含む): 38476800

約数和(自身を除く): 17114805

約数列:

[1, 3, 5, 9, 15, 27, 45, 79, 135, 237, 395, 711, 1185, 2003, 2133, 3555, 6009, 10015, 10665, 18027, 30045, 54081, 90135, 158237, 270405, 474711, 791185, 1424133, 2373555, 4272399, 7120665, 21361995]

約数ペア:

[(1, 21361995), (3, 7120665), (5, 4272399), (9, 2373555), (15, 1424133), (27, 791185), (45, 474711), (79, 270405), (135, 158237), (237, 90135), (395, 54081), (711, 30045), (1185, 18027), (2003, 10665), (2133, 10015), (3555, 6009)]