20788368

素因数分解:

$2^4\times 3^1\times {\mathrm{163}}^1\times {\mathrm{2657}}^1$

素因数の和:2831

約数の個数: 40

約数和(自身を含む): 54053088

約数和(自身を除く): 33264720

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 163, 326, 489, 652, 978, 1304, 1956, 2608, 2657, 3912, 5314, 7824, 7971, 10628, 15942, 21256, 31884, 42512, 63768, 127536, 433091, 866182, 1299273, 1732364, 2598546, 3464728, 5197092, 6929456, 10394184, 20788368]

約数ペア:

[(1, 20788368), (2, 10394184), (3, 6929456), (4, 5197092), (6, 3464728), (8, 2598546), (12, 1732364), (16, 1299273), (24, 866182), (48, 433091), (163, 127536), (326, 63768), (489, 42512), (652, 31884), (978, 21256), (1304, 15942), (1956, 10628), (2608, 7971), (2657, 7824), (3912, 5314)]