20264391

素因数分解:

$3^3\times 7^2\times {\mathrm{17}}^2\times {\mathrm{53}}^1$

素因数の和:110

約数の個数: 72

約数和(自身を含む): 37797840

約数和(自身を除く): 17533449

約数列:

[1, 3, 7, 9, 17, 21, 27, 49, 51, 53, 63, 119, 147, 153, 159, 189, 289, 357, 371, 441, 459, 477, 833, 867, 901, 1071, 1113, 1323, 1431, 2023, 2499, 2597, 2601, 2703, 3213, 3339, 6069, 6307, 7497, 7791, 7803, 8109, 10017, 14161, 15317, 18207, 18921, 22491, 23373, 24327, 42483, 44149, 45951, 54621, 56763, 70119, 107219, 127449, 132447, 137853, 170289, 321657, 382347, 397341, 413559, 750533, 964971, 1192023, 2251599, 2894913, 6754797, 20264391]

約数ペア:

[(1, 20264391), (3, 6754797), (7, 2894913), (9, 2251599), (17, 1192023), (21, 964971), (27, 750533), (49, 413559), (51, 397341), (53, 382347), (63, 321657), (119, 170289), (147, 137853), (153, 132447), (159, 127449), (189, 107219), (289, 70119), (357, 56763), (371, 54621), (441, 45951), (459, 44149), (477, 42483), (833, 24327), (867, 23373), (901, 22491), (1071, 18921), (1113, 18207), (1323, 15317), (1431, 14161), (2023, 10017), (2499, 8109), (2597, 7803), (2601, 7791), (2703, 7497), (3213, 6307), (3339, 6069)]