21023520

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{6257}}^1$

素因数の和:6282

約数の個数: 96

約数和(自身を含む): 75696768

約数和(自身を除く): 54673248

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 210, 224, 240, 280, 336, 420, 480, 560, 672, 840, 1120, 1680, 3360, 6257, 12514, 18771, 25028, 31285, 37542, 43799, 50056, 62570, 75084, 87598, 93855, 100112, 125140, 131397, 150168, 175196, 187710, 200224, 218995, 250280, 262794, 300336, 350392, 375420, 437990, 500560, 525588, 600672, 656985, 700784, 750840, 875980, 1001120, 1051176, 1313970, 1401568, 1501680, 1751960, 2102352, 2627940, 3003360, 3503920, 4204704, 5255880, 7007840, 10511760, 21023520]

約数ペア:

[(1, 21023520), (2, 10511760), (3, 7007840), (4, 5255880), (5, 4204704), (6, 3503920), (7, 3003360), (8, 2627940), (10, 2102352), (12, 1751960), (14, 1501680), (15, 1401568), (16, 1313970), (20, 1051176), (21, 1001120), (24, 875980), (28, 750840), (30, 700784), (32, 656985), (35, 600672), (40, 525588), (42, 500560), (48, 437990), (56, 375420), (60, 350392), (70, 300336), (80, 262794), (84, 250280), (96, 218995), (105, 200224), (112, 187710), (120, 175196), (140, 150168), (160, 131397), (168, 125140), (210, 100112), (224, 93855), (240, 87598), (280, 75084), (336, 62570), (420, 50056), (480, 43799), (560, 37542), (672, 31285), (840, 25028), (1120, 18771), (1680, 12514), (3360, 6257)]