31649541

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{37}}^1$

素因数の和:111

約数の個数: 72

約数和(自身を含む): 57494304

約数和(自身を除く): 25844763

約数列:

[1, 3, 7, 11, 21, 23, 33, 37, 49, 69, 77, 111, 147, 161, 231, 253, 259, 407, 483, 529, 539, 759, 777, 851, 1127, 1221, 1587, 1617, 1771, 1813, 2553, 2849, 3381, 3703, 5313, 5439, 5819, 5957, 8547, 9361, 11109, 12397, 17457, 17871, 19573, 19943, 25921, 28083, 37191, 40733, 41699, 58719, 59829, 65527, 77763, 122199, 125097, 137011, 196581, 215303, 285131, 411033, 458689, 645909, 855393, 959077, 1376067, 1507121, 2877231, 4521363, 10549847, 31649541]

約数ペア:

[(1, 31649541), (3, 10549847), (7, 4521363), (11, 2877231), (21, 1507121), (23, 1376067), (33, 959077), (37, 855393), (49, 645909), (69, 458689), (77, 411033), (111, 285131), (147, 215303), (161, 196581), (231, 137011), (253, 125097), (259, 122199), (407, 77763), (483, 65527), (529, 59829), (539, 58719), (759, 41699), (777, 40733), (851, 37191), (1127, 28083), (1221, 25921), (1587, 19943), (1617, 19573), (1771, 17871), (1813, 17457), (2553, 12397), (2849, 11109), (3381, 9361), (3703, 8547), (5313, 5957), (5439, 5819)]