21615616

素因数分解:

$2^{10}\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1$

素因数の和:151

約数の個数: 88

約数和(自身を含む): 50110560

約数和(自身を除く): 28494944

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 32, 38, 44, 64, 76, 88, 101, 128, 152, 176, 202, 209, 256, 304, 352, 404, 418, 512, 608, 704, 808, 836, 1024, 1111, 1216, 1408, 1616, 1672, 1919, 2222, 2432, 2816, 3232, 3344, 3838, 4444, 4864, 5632, 6464, 6688, 7676, 8888, 9728, 11264, 12928, 13376, 15352, 17776, 19456, 21109, 25856, 26752, 30704, 35552, 42218, 51712, 53504, 61408, 71104, 84436, 103424, 107008, 122816, 142208, 168872, 214016, 245632, 284416, 337744, 491264, 568832, 675488, 982528, 1137664, 1350976, 1965056, 2701952, 5403904, 10807808, 21615616]

約数ペア:

[(1, 21615616), (2, 10807808), (4, 5403904), (8, 2701952), (11, 1965056), (16, 1350976), (19, 1137664), (22, 982528), (32, 675488), (38, 568832), (44, 491264), (64, 337744), (76, 284416), (88, 245632), (101, 214016), (128, 168872), (152, 142208), (176, 122816), (202, 107008), (209, 103424), (256, 84436), (304, 71104), (352, 61408), (404, 53504), (418, 51712), (512, 42218), (608, 35552), (704, 30704), (808, 26752), (836, 25856), (1024, 21109), (1111, 19456), (1216, 17776), (1408, 15352), (1616, 13376), (1672, 12928), (1919, 11264), (2222, 9728), (2432, 8888), (2816, 7676), (3232, 6688), (3344, 6464), (3838, 5632), (4444, 4864)]