20998848

素因数分解:

$2^6\times 3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{179}}^1$

素因数の和:254

約数の個数: 112

約数和(自身を含む): 61447680

約数和(自身を除く): 40448832

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 47, 48, 52, 64, 78, 94, 96, 104, 141, 156, 179, 188, 192, 208, 282, 312, 358, 376, 416, 537, 564, 611, 624, 716, 752, 832, 1074, 1128, 1222, 1248, 1432, 1504, 1833, 2148, 2256, 2327, 2444, 2496, 2864, 3008, 3666, 4296, 4512, 4654, 4888, 5728, 6981, 7332, 8413, 8592, 9024, 9308, 9776, 11456, 13962, 14664, 16826, 17184, 18616, 19552, 25239, 27924, 29328, 33652, 34368, 37232, 39104, 50478, 55848, 58656, 67304, 74464, 100956, 109369, 111696, 117312, 134608, 148928, 201912, 218738, 223392, 269216, 328107, 403824, 437476, 446784, 538432, 656214, 807648, 874952, 1312428, 1615296, 1749904, 2624856, 3499808, 5249712, 6999616, 10499424, 20998848]

約数ペア:

[(1, 20998848), (2, 10499424), (3, 6999616), (4, 5249712), (6, 3499808), (8, 2624856), (12, 1749904), (13, 1615296), (16, 1312428), (24, 874952), (26, 807648), (32, 656214), (39, 538432), (47, 446784), (48, 437476), (52, 403824), (64, 328107), (78, 269216), (94, 223392), (96, 218738), (104, 201912), (141, 148928), (156, 134608), (179, 117312), (188, 111696), (192, 109369), (208, 100956), (282, 74464), (312, 67304), (358, 58656), (376, 55848), (416, 50478), (537, 39104), (564, 37232), (611, 34368), (624, 33652), (716, 29328), (752, 27924), (832, 25239), (1074, 19552), (1128, 18616), (1222, 17184), (1248, 16826), (1432, 14664), (1504, 13962), (1833, 11456), (2148, 9776), (2256, 9308), (2327, 9024), (2444, 8592), (2496, 8413), (2864, 7332), (3008, 6981), (3666, 5728), (4296, 4888), (4512, 4654)]