21957408

素因数分解:

$2^5\times 3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{239}}^1$

素因数の和:295

約数の個数: 144

約数和(自身を含む): 70761600

約数和(自身を除く): 48804192

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 29, 32, 33, 36, 44, 48, 58, 66, 72, 87, 88, 96, 99, 116, 132, 144, 174, 176, 198, 232, 239, 261, 264, 288, 319, 348, 352, 396, 464, 478, 522, 528, 638, 696, 717, 792, 928, 956, 957, 1044, 1056, 1276, 1392, 1434, 1584, 1912, 1914, 2088, 2151, 2552, 2629, 2784, 2868, 2871, 3168, 3824, 3828, 4176, 4302, 5104, 5258, 5736, 5742, 6931, 7648, 7656, 7887, 8352, 8604, 10208, 10516, 11472, 11484, 13862, 15312, 15774, 17208, 20793, 21032, 22944, 22968, 23661, 27724, 30624, 31548, 34416, 41586, 42064, 45936, 47322, 55448, 62379, 63096, 68832, 76241, 83172, 84128, 91872, 94644, 110896, 124758, 126192, 152482, 166344, 189288, 221792, 228723, 249516, 252384, 304964, 332688, 378576, 457446, 499032, 609928, 665376, 686169, 757152, 914892, 998064, 1219856, 1372338, 1829784, 1996128, 2439712, 2744676, 3659568, 5489352, 7319136, 10978704, 21957408]

約数ペア:

[(1, 21957408), (2, 10978704), (3, 7319136), (4, 5489352), (6, 3659568), (8, 2744676), (9, 2439712), (11, 1996128), (12, 1829784), (16, 1372338), (18, 1219856), (22, 998064), (24, 914892), (29, 757152), (32, 686169), (33, 665376), (36, 609928), (44, 499032), (48, 457446), (58, 378576), (66, 332688), (72, 304964), (87, 252384), (88, 249516), (96, 228723), (99, 221792), (116, 189288), (132, 166344), (144, 152482), (174, 126192), (176, 124758), (198, 110896), (232, 94644), (239, 91872), (261, 84128), (264, 83172), (288, 76241), (319, 68832), (348, 63096), (352, 62379), (396, 55448), (464, 47322), (478, 45936), (522, 42064), (528, 41586), (638, 34416), (696, 31548), (717, 30624), (792, 27724), (928, 23661), (956, 22968), (957, 22944), (1044, 21032), (1056, 20793), (1276, 17208), (1392, 15774), (1434, 15312), (1584, 13862), (1912, 11484), (1914, 11472), (2088, 10516), (2151, 10208), (2552, 8604), (2629, 8352), (2784, 7887), (2868, 7656), (2871, 7648), (3168, 6931), (3824, 5742), (3828, 5736), (4176, 5258), (4302, 5104)]