21309288

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{887}}^1$

素因数の和:927

約数の個数: 128

約数和(自身を含む): 71608320

約数和(自身を除く): 50299032

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 13, 14, 21, 22, 24, 26, 28, 33, 39, 42, 44, 52, 56, 66, 77, 78, 84, 88, 91, 104, 132, 143, 154, 156, 168, 182, 231, 264, 273, 286, 308, 312, 364, 429, 462, 546, 572, 616, 728, 858, 887, 924, 1001, 1092, 1144, 1716, 1774, 1848, 2002, 2184, 2661, 3003, 3432, 3548, 4004, 5322, 6006, 6209, 7096, 8008, 9757, 10644, 11531, 12012, 12418, 18627, 19514, 21288, 23062, 24024, 24836, 29271, 34593, 37254, 39028, 46124, 49672, 58542, 68299, 69186, 74508, 78056, 80717, 92248, 117084, 126841, 136598, 138372, 149016, 161434, 204897, 234168, 242151, 253682, 273196, 276744, 322868, 380523, 409794, 484302, 507364, 546392, 645736, 761046, 819588, 887887, 968604, 1014728, 1522092, 1639176, 1775774, 1937208, 2663661, 3044184, 3551548, 5327322, 7103096, 10654644, 21309288]

約数ペア:

[(1, 21309288), (2, 10654644), (3, 7103096), (4, 5327322), (6, 3551548), (7, 3044184), (8, 2663661), (11, 1937208), (12, 1775774), (13, 1639176), (14, 1522092), (21, 1014728), (22, 968604), (24, 887887), (26, 819588), (28, 761046), (33, 645736), (39, 546392), (42, 507364), (44, 484302), (52, 409794), (56, 380523), (66, 322868), (77, 276744), (78, 273196), (84, 253682), (88, 242151), (91, 234168), (104, 204897), (132, 161434), (143, 149016), (154, 138372), (156, 136598), (168, 126841), (182, 117084), (231, 92248), (264, 80717), (273, 78056), (286, 74508), (308, 69186), (312, 68299), (364, 58542), (429, 49672), (462, 46124), (546, 39028), (572, 37254), (616, 34593), (728, 29271), (858, 24836), (887, 24024), (924, 23062), (1001, 21288), (1092, 19514), (1144, 18627), (1716, 12418), (1774, 12012), (1848, 11531), (2002, 10644), (2184, 9757), (2661, 8008), (3003, 7096), (3432, 6209), (3548, 6006), (4004, 5322)]