20999616

素因数分解:

$2^6\times 3^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:250

約数の個数: 112

約数和(自身を含む): 61984128

約数和(自身を除く): 40984512

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 32, 33, 44, 48, 61, 64, 66, 88, 96, 122, 132, 163, 176, 183, 192, 244, 264, 326, 352, 366, 488, 489, 528, 652, 671, 704, 732, 976, 978, 1056, 1304, 1342, 1464, 1793, 1952, 1956, 2013, 2112, 2608, 2684, 2928, 3586, 3904, 3912, 4026, 5216, 5368, 5379, 5856, 7172, 7824, 8052, 9943, 10432, 10736, 10758, 11712, 14344, 15648, 16104, 19886, 21472, 21516, 28688, 29829, 31296, 32208, 39772, 42944, 43032, 57376, 59658, 64416, 79544, 86064, 109373, 114752, 119316, 128832, 159088, 172128, 218746, 238632, 318176, 328119, 344256, 437492, 477264, 636352, 656238, 874984, 954528, 1312476, 1749968, 1909056, 2624952, 3499936, 5249904, 6999872, 10499808, 20999616]

約数ペア:

[(1, 20999616), (2, 10499808), (3, 6999872), (4, 5249904), (6, 3499936), (8, 2624952), (11, 1909056), (12, 1749968), (16, 1312476), (22, 954528), (24, 874984), (32, 656238), (33, 636352), (44, 477264), (48, 437492), (61, 344256), (64, 328119), (66, 318176), (88, 238632), (96, 218746), (122, 172128), (132, 159088), (163, 128832), (176, 119316), (183, 114752), (192, 109373), (244, 86064), (264, 79544), (326, 64416), (352, 59658), (366, 57376), (488, 43032), (489, 42944), (528, 39772), (652, 32208), (671, 31296), (704, 29829), (732, 28688), (976, 21516), (978, 21472), (1056, 19886), (1304, 16104), (1342, 15648), (1464, 14344), (1793, 11712), (1952, 10758), (1956, 10736), (2013, 10432), (2112, 9943), (2608, 8052), (2684, 7824), (2928, 7172), (3586, 5856), (3904, 5379), (3912, 5368), (4026, 5216)]