21023968

素因数分解:

$2^5\times 7^1\times {\mathrm{17}}^1\times {\mathrm{5521}}^1$

素因数の和:5555

約数の個数: 48

約数和(自身を含む): 50095584

約数和(自身を除く): 29071616

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 56, 68, 112, 119, 136, 224, 238, 272, 476, 544, 952, 1904, 3808, 5521, 11042, 22084, 38647, 44168, 77294, 88336, 93857, 154588, 176672, 187714, 309176, 375428, 618352, 656999, 750856, 1236704, 1313998, 1501712, 2627996, 3003424, 5255992, 10511984, 21023968]

約数ペア:

[(1, 21023968), (2, 10511984), (4, 5255992), (7, 3003424), (8, 2627996), (14, 1501712), (16, 1313998), (17, 1236704), (28, 750856), (32, 656999), (34, 618352), (56, 375428), (68, 309176), (112, 187714), (119, 176672), (136, 154588), (224, 93857), (238, 88336), (272, 77294), (476, 44168), (544, 38647), (952, 22084), (1904, 11042), (3808, 5521)]