19481728

素因数分解:

$2^7\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1279}}^1$

素因数の和:1317

約数の個数: 64

約数和(自身を含む): 47001600

約数和(自身を除く): 27519872

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 56, 64, 68, 112, 119, 128, 136, 224, 238, 272, 448, 476, 544, 896, 952, 1088, 1279, 1904, 2176, 2558, 3808, 5116, 7616, 8953, 10232, 15232, 17906, 20464, 21743, 35812, 40928, 43486, 71624, 81856, 86972, 143248, 152201, 163712, 173944, 286496, 304402, 347888, 572992, 608804, 695776, 1145984, 1217608, 1391552, 2435216, 2783104, 4870432, 9740864, 19481728]

約数ペア:

[(1, 19481728), (2, 9740864), (4, 4870432), (7, 2783104), (8, 2435216), (14, 1391552), (16, 1217608), (17, 1145984), (28, 695776), (32, 608804), (34, 572992), (56, 347888), (64, 304402), (68, 286496), (112, 173944), (119, 163712), (128, 152201), (136, 143248), (224, 86972), (238, 81856), (272, 71624), (448, 43486), (476, 40928), (544, 35812), (896, 21743), (952, 20464), (1088, 17906), (1279, 15232), (1904, 10232), (2176, 8953), (2558, 7616), (3808, 5116)]