21838856

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{557}}^1$

素因数の和:618

約数の個数: 48

約数和(自身を含む): 45951300

約数和(自身を除く): 24112444

約数列:

[1, 2, 4, 8, 13, 26, 29, 52, 58, 104, 116, 169, 232, 338, 377, 557, 676, 754, 1114, 1352, 1508, 2228, 3016, 4456, 4901, 7241, 9802, 14482, 16153, 19604, 28964, 32306, 39208, 57928, 64612, 94133, 129224, 188266, 209989, 376532, 419978, 753064, 839956, 1679912, 2729857, 5459714, 10919428, 21838856]

約数ペア:

[(1, 21838856), (2, 10919428), (4, 5459714), (8, 2729857), (13, 1679912), (26, 839956), (29, 753064), (52, 419978), (58, 376532), (104, 209989), (116, 188266), (169, 129224), (232, 94133), (338, 64612), (377, 57928), (557, 39208), (676, 32306), (754, 28964), (1114, 19604), (1352, 16153), (1508, 14482), (2228, 9802), (3016, 7241), (4456, 4901)]