20975682

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{937}}^1$

素因数の和:1003

約数の個数: 64

約数和(自身を含む): 52948224

約数和(自身を除く): 31972542

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 41, 42, 78, 82, 91, 123, 182, 246, 273, 287, 533, 546, 574, 861, 937, 1066, 1599, 1722, 1874, 2811, 3198, 3731, 5622, 6559, 7462, 11193, 12181, 13118, 19677, 22386, 24362, 36543, 38417, 39354, 73086, 76834, 85267, 115251, 170534, 230502, 255801, 268919, 499421, 511602, 537838, 806757, 998842, 1498263, 1613514, 2996526, 3495947, 6991894, 10487841, 20975682]

約数ペア:

[(1, 20975682), (2, 10487841), (3, 6991894), (6, 3495947), (7, 2996526), (13, 1613514), (14, 1498263), (21, 998842), (26, 806757), (39, 537838), (41, 511602), (42, 499421), (78, 268919), (82, 255801), (91, 230502), (123, 170534), (182, 115251), (246, 85267), (273, 76834), (287, 73086), (533, 39354), (546, 38417), (574, 36543), (861, 24362), (937, 22386), (1066, 19677), (1599, 13118), (1722, 12181), (1874, 11193), (2811, 7462), (3198, 6559), (3731, 5622)]