21247560

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{59021}}^1$

素因数の和:59038

約数の個数: 48

約数和(自身を含む): 69055740

約数和(自身を除く): 47808180

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, 59021, 118042, 177063, 236084, 295105, 354126, 472168, 531189, 590210, 708252, 885315, 1062378, 1180420, 1416504, 1770630, 2124756, 2360840, 2655945, 3541260, 4249512, 5311890, 7082520, 10623780, 21247560]

約数ペア:

[(1, 21247560), (2, 10623780), (3, 7082520), (4, 5311890), (5, 4249512), (6, 3541260), (8, 2655945), (9, 2360840), (10, 2124756), (12, 1770630), (15, 1416504), (18, 1180420), (20, 1062378), (24, 885315), (30, 708252), (36, 590210), (40, 531189), (45, 472168), (60, 354126), (72, 295105), (90, 236084), (120, 177063), (180, 118042), (360, 59021)]