21489408

素因数分解:

$2^8\times 3^3\times {\mathrm{3109}}^1$

素因数の和:3134

約数の個数: 72

約数和(自身を含む): 63568400

約数和(自身を除く): 42078992

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 96, 108, 128, 144, 192, 216, 256, 288, 384, 432, 576, 768, 864, 1152, 1728, 2304, 3109, 3456, 6218, 6912, 9327, 12436, 18654, 24872, 27981, 37308, 49744, 55962, 74616, 83943, 99488, 111924, 149232, 167886, 198976, 223848, 298464, 335772, 397952, 447696, 596928, 671544, 795904, 895392, 1193856, 1343088, 1790784, 2387712, 2686176, 3581568, 5372352, 7163136, 10744704, 21489408]

約数ペア:

[(1, 21489408), (2, 10744704), (3, 7163136), (4, 5372352), (6, 3581568), (8, 2686176), (9, 2387712), (12, 1790784), (16, 1343088), (18, 1193856), (24, 895392), (27, 795904), (32, 671544), (36, 596928), (48, 447696), (54, 397952), (64, 335772), (72, 298464), (96, 223848), (108, 198976), (128, 167886), (144, 149232), (192, 111924), (216, 99488), (256, 83943), (288, 74616), (384, 55962), (432, 49744), (576, 37308), (768, 27981), (864, 24872), (1152, 18654), (1728, 12436), (2304, 9327), (3109, 6912), (3456, 6218)]