21359808

素因数分解:

$2^6\times 3^3\times {\mathrm{47}}^1\times {\mathrm{263}}^1$

素因数の和:331

約数の個数: 112

約数和(自身を含む): 64373760

約数和(自身を除く): 43013952

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 47, 48, 54, 64, 72, 94, 96, 108, 141, 144, 188, 192, 216, 263, 282, 288, 376, 423, 432, 526, 564, 576, 752, 789, 846, 864, 1052, 1128, 1269, 1504, 1578, 1692, 1728, 2104, 2256, 2367, 2538, 3008, 3156, 3384, 4208, 4512, 4734, 5076, 6312, 6768, 7101, 8416, 9024, 9468, 10152, 12361, 12624, 13536, 14202, 16832, 18936, 20304, 24722, 25248, 27072, 28404, 37083, 37872, 40608, 49444, 50496, 56808, 74166, 75744, 81216, 98888, 111249, 113616, 148332, 151488, 197776, 222498, 227232, 296664, 333747, 395552, 444996, 454464, 593328, 667494, 791104, 889992, 1186656, 1334988, 1779984, 2373312, 2669976, 3559968, 5339952, 7119936, 10679904, 21359808]

約数ペア:

[(1, 21359808), (2, 10679904), (3, 7119936), (4, 5339952), (6, 3559968), (8, 2669976), (9, 2373312), (12, 1779984), (16, 1334988), (18, 1186656), (24, 889992), (27, 791104), (32, 667494), (36, 593328), (47, 454464), (48, 444996), (54, 395552), (64, 333747), (72, 296664), (94, 227232), (96, 222498), (108, 197776), (141, 151488), (144, 148332), (188, 113616), (192, 111249), (216, 98888), (263, 81216), (282, 75744), (288, 74166), (376, 56808), (423, 50496), (432, 49444), (526, 40608), (564, 37872), (576, 37083), (752, 28404), (789, 27072), (846, 25248), (864, 24722), (1052, 20304), (1128, 18936), (1269, 16832), (1504, 14202), (1578, 13536), (1692, 12624), (1728, 12361), (2104, 10152), (2256, 9468), (2367, 9024), (2538, 8416), (3008, 7101), (3156, 6768), (3384, 6312), (4208, 5076), (4512, 4734)]