21320704

素因数分解:

$2^{10}\times {\mathrm{47}}^1\times {\mathrm{443}}^1$

素因数の和:510

約数の個数: 44

約数和(自身を含む): 43625664

約数和(自身を除く): 22304960

約数列:

[1, 2, 4, 8, 16, 32, 47, 64, 94, 128, 188, 256, 376, 443, 512, 752, 886, 1024, 1504, 1772, 3008, 3544, 6016, 7088, 12032, 14176, 20821, 24064, 28352, 41642, 48128, 56704, 83284, 113408, 166568, 226816, 333136, 453632, 666272, 1332544, 2665088, 5330176, 10660352, 21320704]

約数ペア:

[(1, 21320704), (2, 10660352), (4, 5330176), (8, 2665088), (16, 1332544), (32, 666272), (47, 453632), (64, 333136), (94, 226816), (128, 166568), (188, 113408), (256, 83284), (376, 56704), (443, 48128), (512, 41642), (752, 28352), (886, 24064), (1024, 20821), (1504, 14176), (1772, 12032), (3008, 7088), (3544, 6016)]