21511260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{941}}^1$

素因数の和:1083

約数の個数: 72

約数和(自身を含む): 65834496

約数和(自身を除く): 44323236

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 127, 180, 254, 381, 508, 635, 762, 941, 1143, 1270, 1524, 1882, 1905, 2286, 2540, 2823, 3764, 3810, 4572, 4705, 5646, 5715, 7620, 8469, 9410, 11292, 11430, 14115, 16938, 18820, 22860, 28230, 33876, 42345, 56460, 84690, 119507, 169380, 239014, 358521, 478028, 597535, 717042, 1075563, 1195070, 1434084, 1792605, 2151126, 2390140, 3585210, 4302252, 5377815, 7170420, 10755630, 21511260]

約数ペア:

[(1, 21511260), (2, 10755630), (3, 7170420), (4, 5377815), (5, 4302252), (6, 3585210), (9, 2390140), (10, 2151126), (12, 1792605), (15, 1434084), (18, 1195070), (20, 1075563), (30, 717042), (36, 597535), (45, 478028), (60, 358521), (90, 239014), (127, 169380), (180, 119507), (254, 84690), (381, 56460), (508, 42345), (635, 33876), (762, 28230), (941, 22860), (1143, 18820), (1270, 16938), (1524, 14115), (1882, 11430), (1905, 11292), (2286, 9410), (2540, 8469), (2823, 7620), (3764, 5715), (3810, 5646), (4572, 4705)]