21116025

素因数分解:

$3^3\times 5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1$

素因数の和:176

約数の個数: 96

約数和(自身を含む): 45830400

約数和(自身を除く): 24714375

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 41, 45, 63, 75, 105, 109, 123, 135, 175, 189, 205, 225, 287, 315, 327, 369, 525, 545, 615, 675, 763, 861, 945, 981, 1025, 1107, 1435, 1575, 1635, 1845, 2289, 2583, 2725, 2943, 3075, 3815, 4305, 4469, 4725, 4905, 5535, 6867, 7175, 7749, 8175, 9225, 11445, 12915, 13407, 14715, 19075, 20601, 21525, 22345, 24525, 27675, 31283, 34335, 38745, 40221, 57225, 64575, 67035, 73575, 93849, 103005, 111725, 120663, 156415, 171675, 193725, 201105, 281547, 335175, 469245, 515025, 603315, 782075, 844641, 1005525, 1407735, 2346225, 3016575, 4223205, 7038675, 21116025]

約数ペア:

[(1, 21116025), (3, 7038675), (5, 4223205), (7, 3016575), (9, 2346225), (15, 1407735), (21, 1005525), (25, 844641), (27, 782075), (35, 603315), (41, 515025), (45, 469245), (63, 335175), (75, 281547), (105, 201105), (109, 193725), (123, 171675), (135, 156415), (175, 120663), (189, 111725), (205, 103005), (225, 93849), (287, 73575), (315, 67035), (327, 64575), (369, 57225), (525, 40221), (545, 38745), (615, 34335), (675, 31283), (763, 27675), (861, 24525), (945, 22345), (981, 21525), (1025, 20601), (1107, 19075), (1435, 14715), (1575, 13407), (1635, 12915), (1845, 11445), (2289, 9225), (2583, 8175), (2725, 7749), (2943, 7175), (3075, 6867), (3815, 5535), (4305, 4905), (4469, 4725)]