21508026

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:239

約数の個数: 64

約数和(自身を含む): 48263040

約数和(自身を除く): 26755014

約数列:

[1, 2, 3, 6, 17, 34, 37, 41, 51, 74, 82, 102, 111, 123, 139, 222, 246, 278, 417, 629, 697, 834, 1258, 1394, 1517, 1887, 2091, 2363, 3034, 3774, 4182, 4551, 4726, 5143, 5699, 7089, 9102, 10286, 11398, 14178, 15429, 17097, 25789, 30858, 34194, 51578, 77367, 87431, 96883, 154734, 174862, 193766, 210863, 262293, 290649, 421726, 524586, 581298, 632589, 1265178, 3584671, 7169342, 10754013, 21508026]

約数ペア:

[(1, 21508026), (2, 10754013), (3, 7169342), (6, 3584671), (17, 1265178), (34, 632589), (37, 581298), (41, 524586), (51, 421726), (74, 290649), (82, 262293), (102, 210863), (111, 193766), (123, 174862), (139, 154734), (222, 96883), (246, 87431), (278, 77367), (417, 51578), (629, 34194), (697, 30858), (834, 25789), (1258, 17097), (1394, 15429), (1517, 14178), (1887, 11398), (2091, 10286), (2363, 9102), (3034, 7089), (3774, 5699), (4182, 5143), (4551, 4726)]