20297684

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{647}}^1$

素因数の和:716

約数の個数: 48

約数和(自身を含む): 41803776

約数和(自身を除く): 21506092

約数列:

[1, 2, 4, 11, 22, 23, 31, 44, 46, 62, 92, 124, 253, 341, 506, 647, 682, 713, 1012, 1294, 1364, 1426, 2588, 2852, 7117, 7843, 14234, 14881, 15686, 20057, 28468, 29762, 31372, 40114, 59524, 80228, 163691, 220627, 327382, 441254, 461311, 654764, 882508, 922622, 1845244, 5074421, 10148842, 20297684]

約数ペア:

[(1, 20297684), (2, 10148842), (4, 5074421), (11, 1845244), (22, 922622), (23, 882508), (31, 654764), (44, 461311), (46, 441254), (62, 327382), (92, 220627), (124, 163691), (253, 80228), (341, 59524), (506, 40114), (647, 31372), (682, 29762), (713, 28468), (1012, 20057), (1294, 15686), (1364, 14881), (1426, 14234), (2588, 7843), (2852, 7117)]