21332944

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{211}}^1$

素因数の和:379

約数の個数: 40

約数和(自身を含む): 42586560

約数和(自身を除く): 21253616

約数列:

[1, 2, 4, 8, 16, 71, 89, 142, 178, 211, 284, 356, 422, 568, 712, 844, 1136, 1424, 1688, 3376, 6319, 12638, 14981, 18779, 25276, 29962, 37558, 50552, 59924, 75116, 101104, 119848, 150232, 239696, 300464, 1333309, 2666618, 5333236, 10666472, 21332944]

約数ペア:

[(1, 21332944), (2, 10666472), (4, 5333236), (8, 2666618), (16, 1333309), (71, 300464), (89, 239696), (142, 150232), (178, 119848), (211, 101104), (284, 75116), (356, 59924), (422, 50552), (568, 37558), (712, 29962), (844, 25276), (1136, 18779), (1424, 14981), (1688, 12638), (3376, 6319)]