81538754

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{347}}^1\times {\mathrm{971}}^1$

素因数の和:1342

約数の個数: 24

約数和(自身を含む): 134964144

約数和(自身を除く): 53425390

約数列:

[1, 2, 11, 22, 121, 242, 347, 694, 971, 1942, 3817, 7634, 10681, 21362, 41987, 83974, 117491, 234982, 336937, 673874, 3706307, 7412614, 40769377, 81538754]

約数ペア:

[(1, 81538754), (2, 40769377), (11, 7412614), (22, 3706307), (121, 673874), (242, 336937), (347, 234982), (694, 117491), (971, 83974), (1942, 41987), (3817, 21362), (7634, 10681)]