21076736

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{167}}^1$

素因数の和:229

約数の個数: 72

約数和(自身を含む): 46357920

約数和(自身を除く): 25281184

約数列:

[1, 2, 4, 8, 16, 17, 29, 32, 34, 58, 64, 68, 116, 128, 136, 167, 232, 256, 272, 334, 464, 493, 544, 668, 928, 986, 1088, 1336, 1856, 1972, 2176, 2672, 2839, 3712, 3944, 4352, 4843, 5344, 5678, 7424, 7888, 9686, 10688, 11356, 15776, 19372, 21376, 22712, 31552, 38744, 42752, 45424, 63104, 77488, 82331, 90848, 126208, 154976, 164662, 181696, 309952, 329324, 363392, 619904, 658648, 726784, 1239808, 1317296, 2634592, 5269184, 10538368, 21076736]

約数ペア:

[(1, 21076736), (2, 10538368), (4, 5269184), (8, 2634592), (16, 1317296), (17, 1239808), (29, 726784), (32, 658648), (34, 619904), (58, 363392), (64, 329324), (68, 309952), (116, 181696), (128, 164662), (136, 154976), (167, 126208), (232, 90848), (256, 82331), (272, 77488), (334, 63104), (464, 45424), (493, 42752), (544, 38744), (668, 31552), (928, 22712), (986, 21376), (1088, 19372), (1336, 15776), (1856, 11356), (1972, 10688), (2176, 9686), (2672, 7888), (2839, 7424), (3712, 5678), (3944, 5344), (4352, 4843)]