20404188

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{269}}^1$

素因数の和:336

約数の個数: 108

約数和(自身を含む): 61621560

約数和(自身を除く): 41217372

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 43, 49, 63, 84, 86, 98, 126, 129, 147, 172, 196, 252, 258, 269, 294, 301, 387, 441, 516, 538, 588, 602, 774, 807, 882, 903, 1076, 1204, 1548, 1614, 1764, 1806, 1883, 2107, 2421, 2709, 3228, 3612, 3766, 4214, 4842, 5418, 5649, 6321, 7532, 8428, 9684, 10836, 11298, 11567, 12642, 13181, 16947, 18963, 22596, 23134, 25284, 26362, 33894, 34701, 37926, 39543, 46268, 52724, 67788, 69402, 75852, 79086, 80969, 104103, 118629, 138804, 158172, 161938, 208206, 237258, 242907, 323876, 416412, 474516, 485814, 566783, 728721, 971628, 1133566, 1457442, 1700349, 2267132, 2914884, 3400698, 5101047, 6801396, 10202094, 20404188]

約数ペア:

[(1, 20404188), (2, 10202094), (3, 6801396), (4, 5101047), (6, 3400698), (7, 2914884), (9, 2267132), (12, 1700349), (14, 1457442), (18, 1133566), (21, 971628), (28, 728721), (36, 566783), (42, 485814), (43, 474516), (49, 416412), (63, 323876), (84, 242907), (86, 237258), (98, 208206), (126, 161938), (129, 158172), (147, 138804), (172, 118629), (196, 104103), (252, 80969), (258, 79086), (269, 75852), (294, 69402), (301, 67788), (387, 52724), (441, 46268), (516, 39543), (538, 37926), (588, 34701), (602, 33894), (774, 26362), (807, 25284), (882, 23134), (903, 22596), (1076, 18963), (1204, 16947), (1548, 13181), (1614, 12642), (1764, 11567), (1806, 11298), (1883, 10836), (2107, 9684), (2421, 8428), (2709, 7532), (3228, 6321), (3612, 5649), (3766, 5418), (4214, 4842)]