21000261816

素因数分解:

$2^3\times 3^2\times {\mathrm{5303}}^1\times {\mathrm{55001}}^1$

素因数の和:60316

約数の個数: 48

約数和(自身を含む): 56887468560

約数和(自身を除く): 35887206744

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 5303, 10606, 15909, 21212, 31818, 42424, 47727, 55001, 63636, 95454, 110002, 127272, 165003, 190908, 220004, 330006, 381816, 440008, 495009, 660012, 990018, 1320024, 1980036, 3960072, 291670303, 583340606, 875010909, 1166681212, 1750021818, 2333362424, 2625032727, 3500043636, 5250065454, 7000087272, 10500130908, 21000261816]

約数ペア:

[(1, 21000261816), (2, 10500130908), (3, 7000087272), (4, 5250065454), (6, 3500043636), (8, 2625032727), (9, 2333362424), (12, 1750021818), (18, 1166681212), (24, 875010909), (36, 583340606), (72, 291670303), (5303, 3960072), (10606, 1980036), (15909, 1320024), (21212, 990018), (31818, 660012), (42424, 495009), (47727, 440008), (55001, 381816), (63636, 330006), (95454, 220004), (110002, 190908), (127272, 165003)]