20884204

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 41997312

約数和(自身を除く): 21113108

約数列:

[1, 2, 4, 11, 22, 31, 44, 61, 62, 122, 124, 244, 251, 341, 502, 671, 682, 1004, 1342, 1364, 1891, 2684, 2761, 3782, 5522, 7564, 7781, 11044, 15311, 15562, 20801, 30622, 31124, 41602, 61244, 83204, 85591, 168421, 171182, 336842, 342364, 474641, 673684, 949282, 1898564, 5221051, 10442102, 20884204]

約数ペア:

[(1, 20884204), (2, 10442102), (4, 5221051), (11, 1898564), (22, 949282), (31, 673684), (44, 474641), (61, 342364), (62, 336842), (122, 171182), (124, 168421), (244, 85591), (251, 83204), (341, 61244), (502, 41602), (671, 31124), (682, 30622), (1004, 20801), (1342, 15562), (1364, 15311), (1891, 11044), (2684, 7781), (2761, 7564), (3782, 5522)]