21134925

素因数分解:

$3^5\times 5^2\times 7^2\times {\mathrm{71}}^1$

素因数の和:110

約数の個数: 108

約数和(自身を含む): 46309536

約数和(自身を除く): 25174611

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 49, 63, 71, 75, 81, 105, 135, 147, 175, 189, 213, 225, 243, 245, 315, 355, 405, 441, 497, 525, 567, 639, 675, 735, 945, 1065, 1215, 1225, 1323, 1491, 1575, 1701, 1775, 1917, 2025, 2205, 2485, 2835, 3195, 3479, 3675, 3969, 4473, 4725, 5325, 5751, 6075, 6615, 7455, 8505, 9585, 10437, 11025, 11907, 12425, 13419, 14175, 15975, 17253, 17395, 19845, 22365, 28755, 31311, 33075, 37275, 40257, 42525, 47925, 52185, 59535, 67095, 86265, 86975, 93933, 99225, 111825, 120771, 143775, 156555, 201285, 260925, 281799, 297675, 335475, 431325, 469665, 603855, 782775, 845397, 1006425, 1408995, 2348325, 3019275, 4226985, 7044975, 21134925]

約数ペア:

[(1, 21134925), (3, 7044975), (5, 4226985), (7, 3019275), (9, 2348325), (15, 1408995), (21, 1006425), (25, 845397), (27, 782775), (35, 603855), (45, 469665), (49, 431325), (63, 335475), (71, 297675), (75, 281799), (81, 260925), (105, 201285), (135, 156555), (147, 143775), (175, 120771), (189, 111825), (213, 99225), (225, 93933), (243, 86975), (245, 86265), (315, 67095), (355, 59535), (405, 52185), (441, 47925), (497, 42525), (525, 40257), (567, 37275), (639, 33075), (675, 31311), (735, 28755), (945, 22365), (1065, 19845), (1215, 17395), (1225, 17253), (1323, 15975), (1491, 14175), (1575, 13419), (1701, 12425), (1775, 11907), (1917, 11025), (2025, 10437), (2205, 9585), (2485, 8505), (2835, 7455), (3195, 6615), (3479, 6075), (3675, 5751), (3969, 5325), (4473, 4725)]