11987955

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2003}}^1$

素因数の和:2040

約数の個数: 48

約数和(自身を含む): 25009920

約数和(自身を除く): 13021965

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 35, 45, 57, 63, 95, 105, 133, 171, 285, 315, 399, 665, 855, 1197, 1995, 2003, 5985, 6009, 10015, 14021, 18027, 30045, 38057, 42063, 70105, 90135, 114171, 126189, 190285, 210315, 266399, 342513, 570855, 630945, 799197, 1331995, 1712565, 2397591, 3995985, 11987955]

約数ペア:

[(1, 11987955), (3, 3995985), (5, 2397591), (7, 1712565), (9, 1331995), (15, 799197), (19, 630945), (21, 570855), (35, 342513), (45, 266399), (57, 210315), (63, 190285), (95, 126189), (105, 114171), (133, 90135), (171, 70105), (285, 42063), (315, 38057), (399, 30045), (665, 18027), (855, 14021), (1197, 10015), (1995, 6009), (2003, 5985)]