21557172

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1039}}^1$

素因数の和:1085

約数の個数: 96

約数和(自身を含む): 65228800

約数和(自身を除く): 43671628

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 19, 21, 26, 28, 38, 39, 42, 52, 57, 76, 78, 84, 91, 114, 133, 156, 182, 228, 247, 266, 273, 364, 399, 494, 532, 546, 741, 798, 988, 1039, 1092, 1482, 1596, 1729, 2078, 2964, 3117, 3458, 4156, 5187, 6234, 6916, 7273, 10374, 12468, 13507, 14546, 19741, 20748, 21819, 27014, 29092, 39482, 40521, 43638, 54028, 59223, 78964, 81042, 87276, 94549, 118446, 138187, 162084, 189098, 236892, 256633, 276374, 283647, 378196, 414561, 513266, 552748, 567294, 769899, 829122, 1026532, 1134588, 1539798, 1658244, 1796431, 3079596, 3592862, 5389293, 7185724, 10778586, 21557172]

約数ペア:

[(1, 21557172), (2, 10778586), (3, 7185724), (4, 5389293), (6, 3592862), (7, 3079596), (12, 1796431), (13, 1658244), (14, 1539798), (19, 1134588), (21, 1026532), (26, 829122), (28, 769899), (38, 567294), (39, 552748), (42, 513266), (52, 414561), (57, 378196), (76, 283647), (78, 276374), (84, 256633), (91, 236892), (114, 189098), (133, 162084), (156, 138187), (182, 118446), (228, 94549), (247, 87276), (266, 81042), (273, 78964), (364, 59223), (399, 54028), (494, 43638), (532, 40521), (546, 39482), (741, 29092), (798, 27014), (988, 21819), (1039, 20748), (1092, 19741), (1482, 14546), (1596, 13507), (1729, 12468), (2078, 10374), (2964, 7273), (3117, 6916), (3458, 6234), (4156, 5187)]