21316736

素因数分解:

$2^7\times 7^1\times {\mathrm{37}}^1\times {\mathrm{643}}^1$

素因数の和:701

約数の個数: 64

約数和(自身を含む): 49922880

約数和(自身を除く): 28606144

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 56, 64, 74, 112, 128, 148, 224, 259, 296, 448, 518, 592, 643, 896, 1036, 1184, 1286, 2072, 2368, 2572, 4144, 4501, 4736, 5144, 8288, 9002, 10288, 16576, 18004, 20576, 23791, 33152, 36008, 41152, 47582, 72016, 82304, 95164, 144032, 166537, 190328, 288064, 333074, 380656, 576128, 666148, 761312, 1332296, 1522624, 2664592, 3045248, 5329184, 10658368, 21316736]

約数ペア:

[(1, 21316736), (2, 10658368), (4, 5329184), (7, 3045248), (8, 2664592), (14, 1522624), (16, 1332296), (28, 761312), (32, 666148), (37, 576128), (56, 380656), (64, 333074), (74, 288064), (112, 190328), (128, 166537), (148, 144032), (224, 95164), (259, 82304), (296, 72016), (448, 47582), (518, 41152), (592, 36008), (643, 33152), (896, 23791), (1036, 20576), (1184, 18004), (1286, 16576), (2072, 10288), (2368, 9002), (2572, 8288), (4144, 5144), (4501, 4736)]