18648861

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{607}}^1$

素因数の和:654

約数の個数: 48

約数和(自身を含む): 33269760

約数和(自身を除く): 14620899

約数列:

[1, 3, 7, 11, 19, 21, 33, 49, 57, 77, 133, 147, 209, 231, 399, 539, 607, 627, 931, 1463, 1617, 1821, 2793, 4249, 4389, 6677, 10241, 11533, 12747, 20031, 29743, 30723, 34599, 46739, 80731, 89229, 126863, 140217, 242193, 327173, 380589, 565117, 888041, 981519, 1695351, 2664123, 6216287, 18648861]

約数ペア:

[(1, 18648861), (3, 6216287), (7, 2664123), (11, 1695351), (19, 981519), (21, 888041), (33, 565117), (49, 380589), (57, 327173), (77, 242193), (133, 140217), (147, 126863), (209, 89229), (231, 80731), (399, 46739), (539, 34599), (607, 30723), (627, 29743), (931, 20031), (1463, 12747), (1617, 11533), (1821, 10241), (2793, 6677), (4249, 4389)]