21509604

素因数分解:

$2^2\times 3^3\times {\mathrm{277}}^1\times {\mathrm{719}}^1$

素因数の和:1009

約数の個数: 48

約数和(自身を含む): 56044800

約数和(自身を除く): 34535196

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 277, 554, 719, 831, 1108, 1438, 1662, 2157, 2493, 2876, 3324, 4314, 4986, 6471, 7479, 8628, 9972, 12942, 14958, 19413, 25884, 29916, 38826, 77652, 199163, 398326, 597489, 796652, 1194978, 1792467, 2389956, 3584934, 5377401, 7169868, 10754802, 21509604]

約数ペア:

[(1, 21509604), (2, 10754802), (3, 7169868), (4, 5377401), (6, 3584934), (9, 2389956), (12, 1792467), (18, 1194978), (27, 796652), (36, 597489), (54, 398326), (108, 199163), (277, 77652), (554, 38826), (719, 29916), (831, 25884), (1108, 19413), (1438, 14958), (1662, 12942), (2157, 9972), (2493, 8628), (2876, 7479), (3324, 6471), (4314, 4986)]