18911354

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{331}}^1$

素因数の和:411

約数の個数: 48

約数和(自身を含む): 36788256

約数和(自身を除く): 17876902

約数列:

[1, 2, 7, 11, 14, 22, 49, 53, 77, 98, 106, 154, 331, 371, 539, 583, 662, 742, 1078, 1166, 2317, 2597, 3641, 4081, 4634, 5194, 7282, 8162, 16219, 17543, 25487, 28567, 32438, 35086, 50974, 57134, 122801, 178409, 192973, 245602, 356818, 385946, 859607, 1350811, 1719214, 2701622, 9455677, 18911354]

約数ペア:

[(1, 18911354), (2, 9455677), (7, 2701622), (11, 1719214), (14, 1350811), (22, 859607), (49, 385946), (53, 356818), (77, 245602), (98, 192973), (106, 178409), (154, 122801), (331, 57134), (371, 50974), (539, 35086), (583, 32438), (662, 28567), (742, 25487), (1078, 17543), (1166, 16219), (2317, 8162), (2597, 7282), (3641, 5194), (4081, 4634)]