21455136

素因数分解:

$2^5\times 3^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:159

約数の個数: 144

約数和(自身を含む): 66044160

約数和(自身を除く): 44589024

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 32, 36, 41, 46, 48, 69, 72, 79, 82, 92, 96, 123, 138, 144, 158, 164, 184, 207, 237, 246, 276, 288, 316, 328, 368, 369, 414, 474, 492, 552, 632, 656, 711, 736, 738, 828, 943, 948, 984, 1104, 1264, 1312, 1422, 1476, 1656, 1817, 1886, 1896, 1968, 2208, 2528, 2829, 2844, 2952, 3239, 3312, 3634, 3772, 3792, 3936, 5451, 5658, 5688, 5904, 6478, 6624, 7268, 7544, 7584, 8487, 9717, 10902, 11316, 11376, 11808, 12956, 14536, 15088, 16353, 16974, 19434, 21804, 22632, 22752, 25912, 29072, 29151, 30176, 32706, 33948, 38868, 43608, 45264, 51824, 58144, 58302, 65412, 67896, 74497, 77736, 87216, 90528, 103648, 116604, 130824, 135792, 148994, 155472, 174432, 223491, 233208, 261648, 271584, 297988, 310944, 446982, 466416, 523296, 595976, 670473, 893964, 932832, 1191952, 1340946, 1787928, 2383904, 2681892, 3575856, 5363784, 7151712, 10727568, 21455136]

約数ペア:

[(1, 21455136), (2, 10727568), (3, 7151712), (4, 5363784), (6, 3575856), (8, 2681892), (9, 2383904), (12, 1787928), (16, 1340946), (18, 1191952), (23, 932832), (24, 893964), (32, 670473), (36, 595976), (41, 523296), (46, 466416), (48, 446982), (69, 310944), (72, 297988), (79, 271584), (82, 261648), (92, 233208), (96, 223491), (123, 174432), (138, 155472), (144, 148994), (158, 135792), (164, 130824), (184, 116604), (207, 103648), (237, 90528), (246, 87216), (276, 77736), (288, 74497), (316, 67896), (328, 65412), (368, 58302), (369, 58144), (414, 51824), (474, 45264), (492, 43608), (552, 38868), (632, 33948), (656, 32706), (711, 30176), (736, 29151), (738, 29072), (828, 25912), (943, 22752), (948, 22632), (984, 21804), (1104, 19434), (1264, 16974), (1312, 16353), (1422, 15088), (1476, 14536), (1656, 12956), (1817, 11808), (1886, 11376), (1896, 11316), (1968, 10902), (2208, 9717), (2528, 8487), (2829, 7584), (2844, 7544), (2952, 7268), (3239, 6624), (3312, 6478), (3634, 5904), (3772, 5688), (3792, 5658), (3936, 5451)]