21959392

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7541}}^1$

素因数の和:7571

約数の個数: 48

約数和(自身を含む): 53216352

約数和(自身を除く): 31256960

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 91, 104, 112, 182, 208, 224, 364, 416, 728, 1456, 2912, 7541, 15082, 30164, 52787, 60328, 98033, 105574, 120656, 196066, 211148, 241312, 392132, 422296, 686231, 784264, 844592, 1372462, 1568528, 1689184, 2744924, 3137056, 5489848, 10979696, 21959392]

約数ペア:

[(1, 21959392), (2, 10979696), (4, 5489848), (7, 3137056), (8, 2744924), (13, 1689184), (14, 1568528), (16, 1372462), (26, 844592), (28, 784264), (32, 686231), (52, 422296), (56, 392132), (91, 241312), (104, 211148), (112, 196066), (182, 120656), (208, 105574), (224, 98033), (364, 60328), (416, 52787), (728, 30164), (1456, 15082), (2912, 7541)]