21253896

素因数分解:

$2^3\times 3^2\times {\mathrm{163}}^1\times {\mathrm{1811}}^1$

素因数の和:1986

約数の個数: 48

約数和(自身を含む): 57947760

約数和(自身を除く): 36693864

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 163, 326, 489, 652, 978, 1304, 1467, 1811, 1956, 2934, 3622, 3912, 5433, 5868, 7244, 10866, 11736, 14488, 16299, 21732, 32598, 43464, 65196, 130392, 295193, 590386, 885579, 1180772, 1771158, 2361544, 2656737, 3542316, 5313474, 7084632, 10626948, 21253896]

約数ペア:

[(1, 21253896), (2, 10626948), (3, 7084632), (4, 5313474), (6, 3542316), (8, 2656737), (9, 2361544), (12, 1771158), (18, 1180772), (24, 885579), (36, 590386), (72, 295193), (163, 130392), (326, 65196), (489, 43464), (652, 32598), (978, 21732), (1304, 16299), (1467, 14488), (1811, 11736), (1956, 10866), (2934, 7244), (3622, 5868), (3912, 5433)]