21170744

素因数分解:

$2^3\times 7^2\times {\mathrm{53}}^1\times {\mathrm{1019}}^1$

素因数の和:1092

約数の個数: 48

約数和(自身を含む): 47093400

約数和(自身を除く): 25922656

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 53, 56, 98, 106, 196, 212, 371, 392, 424, 742, 1019, 1484, 2038, 2597, 2968, 4076, 5194, 7133, 8152, 10388, 14266, 20776, 28532, 49931, 54007, 57064, 99862, 108014, 199724, 216028, 378049, 399448, 432056, 756098, 1512196, 2646343, 3024392, 5292686, 10585372, 21170744]

約数ペア:

[(1, 21170744), (2, 10585372), (4, 5292686), (7, 3024392), (8, 2646343), (14, 1512196), (28, 756098), (49, 432056), (53, 399448), (56, 378049), (98, 216028), (106, 199724), (196, 108014), (212, 99862), (371, 57064), (392, 54007), (424, 49931), (742, 28532), (1019, 20776), (1484, 14266), (2038, 10388), (2597, 8152), (2968, 7133), (4076, 5194)]