21787560

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{60521}}^1$

素因数の和:60538

約数の個数: 48

約数和(自身を含む): 70810740

約数和(自身を除く): 49023180

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, 60521, 121042, 181563, 242084, 302605, 363126, 484168, 544689, 605210, 726252, 907815, 1089378, 1210420, 1452504, 1815630, 2178756, 2420840, 2723445, 3631260, 4357512, 5446890, 7262520, 10893780, 21787560]

約数ペア:

[(1, 21787560), (2, 10893780), (3, 7262520), (4, 5446890), (5, 4357512), (6, 3631260), (8, 2723445), (9, 2420840), (10, 2178756), (12, 1815630), (15, 1452504), (18, 1210420), (20, 1089378), (24, 907815), (30, 726252), (36, 605210), (40, 544689), (45, 484168), (60, 363126), (72, 302605), (90, 242084), (120, 181563), (180, 121042), (360, 60521)]