18909228

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{2579}}^1$

素因数の和:2646

約数の個数: 48

約数和(自身を含む): 48545280

約数和(自身を除く): 29636052

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 47, 52, 78, 94, 141, 156, 188, 282, 564, 611, 1222, 1833, 2444, 2579, 3666, 5158, 7332, 7737, 10316, 15474, 30948, 33527, 67054, 100581, 121213, 134108, 201162, 242426, 363639, 402324, 484852, 727278, 1454556, 1575769, 3151538, 4727307, 6303076, 9454614, 18909228]

約数ペア:

[(1, 18909228), (2, 9454614), (3, 6303076), (4, 4727307), (6, 3151538), (12, 1575769), (13, 1454556), (26, 727278), (39, 484852), (47, 402324), (52, 363639), (78, 242426), (94, 201162), (141, 134108), (156, 121213), (188, 100581), (282, 67054), (564, 33527), (611, 30948), (1222, 15474), (1833, 10316), (2444, 7737), (2579, 7332), (3666, 5158)]