21743488

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{179}}^1$

素因数の和:279

約数の個数: 64

約数和(自身を含む): 47552400

約数和(自身を除く): 25808912

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 73, 104, 128, 146, 179, 208, 292, 358, 416, 584, 716, 832, 949, 1168, 1432, 1664, 1898, 2327, 2336, 2864, 3796, 4654, 4672, 5728, 7592, 9308, 9344, 11456, 13067, 15184, 18616, 22912, 26134, 30368, 37232, 52268, 60736, 74464, 104536, 121472, 148928, 169871, 209072, 297856, 339742, 418144, 679484, 836288, 1358968, 1672576, 2717936, 5435872, 10871744, 21743488]

約数ペア:

[(1, 21743488), (2, 10871744), (4, 5435872), (8, 2717936), (13, 1672576), (16, 1358968), (26, 836288), (32, 679484), (52, 418144), (64, 339742), (73, 297856), (104, 209072), (128, 169871), (146, 148928), (179, 121472), (208, 104536), (292, 74464), (358, 60736), (416, 52268), (584, 37232), (716, 30368), (832, 26134), (949, 22912), (1168, 18616), (1432, 15184), (1664, 13067), (1898, 11456), (2327, 9344), (2336, 9308), (2864, 7592), (3796, 5728), (4654, 4672)]