19749492

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{719}}^1$

素因数の和:845

約数の個数: 72

約数和(自身を含む): 57657600

約数和(自身を除く): 37908108

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 109, 126, 218, 252, 327, 436, 654, 719, 763, 981, 1308, 1438, 1526, 1962, 2157, 2289, 2876, 3052, 3924, 4314, 4578, 5033, 6471, 6867, 8628, 9156, 10066, 12942, 13734, 15099, 20132, 25884, 27468, 30198, 45297, 60396, 78371, 90594, 156742, 181188, 235113, 313484, 470226, 548597, 705339, 940452, 1097194, 1410678, 1645791, 2194388, 2821356, 3291582, 4937373, 6583164, 9874746, 19749492]

約数ペア:

[(1, 19749492), (2, 9874746), (3, 6583164), (4, 4937373), (6, 3291582), (7, 2821356), (9, 2194388), (12, 1645791), (14, 1410678), (18, 1097194), (21, 940452), (28, 705339), (36, 548597), (42, 470226), (63, 313484), (84, 235113), (109, 181188), (126, 156742), (218, 90594), (252, 78371), (327, 60396), (436, 45297), (654, 30198), (719, 27468), (763, 25884), (981, 20132), (1308, 15099), (1438, 13734), (1526, 12942), (1962, 10066), (2157, 9156), (2289, 8628), (2876, 6867), (3052, 6471), (3924, 5033), (4314, 4578)]