21068264

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{19801}}^1$

素因数の和:19833

約数の個数: 32

約数和(自身を含む): 47524800

約数和(自身を除く): 26456536

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 19801, 39602, 79204, 138607, 158408, 277214, 376219, 554428, 752438, 1108856, 1504876, 2633533, 3009752, 5267066, 10534132, 21068264]

約数ペア:

[(1, 21068264), (2, 10534132), (4, 5267066), (7, 3009752), (8, 2633533), (14, 1504876), (19, 1108856), (28, 752438), (38, 554428), (56, 376219), (76, 277214), (133, 158408), (152, 138607), (266, 79204), (532, 39602), (1064, 19801)]