21179568

素因数分解:

$2^4\times 3^1\times {\mathrm{163}}^1\times {\mathrm{2707}}^1$

素因数の和:2881

約数の個数: 40

約数和(自身を含む): 55069888

約数和(自身を除く): 33890320

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 163, 326, 489, 652, 978, 1304, 1956, 2608, 2707, 3912, 5414, 7824, 8121, 10828, 16242, 21656, 32484, 43312, 64968, 129936, 441241, 882482, 1323723, 1764964, 2647446, 3529928, 5294892, 7059856, 10589784, 21179568]

約数ペア:

[(1, 21179568), (2, 10589784), (3, 7059856), (4, 5294892), (6, 3529928), (8, 2647446), (12, 1764964), (16, 1323723), (24, 882482), (48, 441241), (163, 129936), (326, 64968), (489, 43312), (652, 32484), (978, 21656), (1304, 16242), (1956, 10828), (2608, 8121), (2707, 7824), (3912, 5414)]