21304704

素因数分解:

$2^7\times 3^1\times {\mathrm{109}}^1\times {\mathrm{509}}^1$

素因数の和:635

約数の個数: 64

約数和(自身を含む): 57222000

約数和(自身を除く): 35917296

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 109, 128, 192, 218, 327, 384, 436, 509, 654, 872, 1018, 1308, 1527, 1744, 2036, 2616, 3054, 3488, 4072, 5232, 6108, 6976, 8144, 10464, 12216, 13952, 16288, 20928, 24432, 32576, 41856, 48864, 55481, 65152, 97728, 110962, 166443, 195456, 221924, 332886, 443848, 665772, 887696, 1331544, 1775392, 2663088, 3550784, 5326176, 7101568, 10652352, 21304704]

約数ペア:

[(1, 21304704), (2, 10652352), (3, 7101568), (4, 5326176), (6, 3550784), (8, 2663088), (12, 1775392), (16, 1331544), (24, 887696), (32, 665772), (48, 443848), (64, 332886), (96, 221924), (109, 195456), (128, 166443), (192, 110962), (218, 97728), (327, 65152), (384, 55481), (436, 48864), (509, 41856), (654, 32576), (872, 24432), (1018, 20928), (1308, 16288), (1527, 13952), (1744, 12216), (2036, 10464), (2616, 8144), (3054, 6976), (3488, 6108), (4072, 5232)]