18819976

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{293}}^1$

素因数の和:374

約数の個数: 64

約数和(自身を含む): 42900480

約数和(自身を除く): 24080504

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 37, 56, 62, 74, 124, 148, 217, 248, 259, 293, 296, 434, 518, 586, 868, 1036, 1147, 1172, 1736, 2051, 2072, 2294, 2344, 4102, 4588, 8029, 8204, 9083, 9176, 10841, 16058, 16408, 18166, 21682, 32116, 36332, 43364, 63581, 64232, 72664, 75887, 86728, 127162, 151774, 254324, 303548, 336071, 508648, 607096, 672142, 1344284, 2352497, 2688568, 4704994, 9409988, 18819976]

約数ペア:

[(1, 18819976), (2, 9409988), (4, 4704994), (7, 2688568), (8, 2352497), (14, 1344284), (28, 672142), (31, 607096), (37, 508648), (56, 336071), (62, 303548), (74, 254324), (124, 151774), (148, 127162), (217, 86728), (248, 75887), (259, 72664), (293, 64232), (296, 63581), (434, 43364), (518, 36332), (586, 32116), (868, 21682), (1036, 18166), (1147, 16408), (1172, 16058), (1736, 10841), (2051, 9176), (2072, 9083), (2294, 8204), (2344, 8029), (4102, 4588)]