21481260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{2371}}^1$

素因数の和:2534

約数の個数: 48

約数和(自身を含む): 60571392

約数和(自身を除く): 39090132

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 151, 302, 453, 604, 755, 906, 1510, 1812, 2265, 2371, 3020, 4530, 4742, 7113, 9060, 9484, 11855, 14226, 23710, 28452, 35565, 47420, 71130, 142260, 358021, 716042, 1074063, 1432084, 1790105, 2148126, 3580210, 4296252, 5370315, 7160420, 10740630, 21481260]

約数ペア:

[(1, 21481260), (2, 10740630), (3, 7160420), (4, 5370315), (5, 4296252), (6, 3580210), (10, 2148126), (12, 1790105), (15, 1432084), (20, 1074063), (30, 716042), (60, 358021), (151, 142260), (302, 71130), (453, 47420), (604, 35565), (755, 28452), (906, 23710), (1510, 14226), (1812, 11855), (2265, 9484), (2371, 9060), (3020, 7113), (4530, 4742)]