21488456

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{7877}}^1$

素因数の和:7925

約数の個数: 32

約数和(自身を含む): 45377280

約数和(自身を除く): 23888824

約数列:

[1, 2, 4, 8, 11, 22, 31, 44, 62, 88, 124, 248, 341, 682, 1364, 2728, 7877, 15754, 31508, 63016, 86647, 173294, 244187, 346588, 488374, 693176, 976748, 1953496, 2686057, 5372114, 10744228, 21488456]

約数ペア:

[(1, 21488456), (2, 10744228), (4, 5372114), (8, 2686057), (11, 1953496), (22, 976748), (31, 693176), (44, 488374), (62, 346588), (88, 244187), (124, 173294), (248, 86647), (341, 63016), (682, 31508), (1364, 15754), (2728, 7877)]