18513572

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{277}}^1$

素因数の和:337

約数の個数: 72

約数和(自身を含む): 42594048

約数和(自身を除く): 24080476

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 31, 44, 49, 62, 77, 98, 124, 154, 196, 217, 277, 308, 341, 434, 539, 554, 682, 868, 1078, 1108, 1364, 1519, 1939, 2156, 2387, 3038, 3047, 3878, 4774, 6076, 6094, 7756, 8587, 9548, 12188, 13573, 16709, 17174, 21329, 27146, 33418, 34348, 42658, 54292, 60109, 66836, 85316, 94457, 120218, 149303, 188914, 240436, 298606, 377828, 420763, 597212, 661199, 841526, 1322398, 1683052, 2644796, 4628393, 9256786, 18513572]

約数ペア:

[(1, 18513572), (2, 9256786), (4, 4628393), (7, 2644796), (11, 1683052), (14, 1322398), (22, 841526), (28, 661199), (31, 597212), (44, 420763), (49, 377828), (62, 298606), (77, 240436), (98, 188914), (124, 149303), (154, 120218), (196, 94457), (217, 85316), (277, 66836), (308, 60109), (341, 54292), (434, 42658), (539, 34348), (554, 33418), (682, 27146), (868, 21329), (1078, 17174), (1108, 16709), (1364, 13573), (1519, 12188), (1939, 9548), (2156, 8587), (2387, 7756), (3038, 6094), (3047, 6076), (3878, 4774)]