21478680

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{59663}}^1$

素因数の和:59680

約数の個数: 48

約数和(自身を含む): 69806880

約数和(自身を除く): 48328200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 59663, 119326, 178989, 238652, 298315, 357978, 477304, 536967, 596630, 715956, 894945, 1073934, 1193260, 1431912, 1789890, 2147868, 2386520, 2684835, 3579780, 4295736, 5369670, 7159560, 10739340, 21478680]

約数ペア:

[(1, 21478680), (2, 10739340), (3, 7159560), (4, 5369670), (5, 4295736), (6, 3579780), (8, 2684835), (9, 2386520), (10, 2147868), (12, 1789890), (15, 1431912), (18, 1193260), (20, 1073934), (24, 894945), (30, 715956), (36, 596630), (40, 536967), (45, 477304), (60, 357978), (72, 298315), (90, 238652), (120, 178989), (180, 119326), (360, 59663)]