20649118

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1637}}^1$

素因数の和:1716

約数の個数: 32

約数和(自身を含む): 38211264

約数和(自身を除く): 17562146

約数列:

[1, 2, 7, 14, 17, 34, 53, 106, 119, 238, 371, 742, 901, 1637, 1802, 3274, 6307, 11459, 12614, 22918, 27829, 55658, 86761, 173522, 194803, 389606, 607327, 1214654, 1474937, 2949874, 10324559, 20649118]

約数ペア:

[(1, 20649118), (2, 10324559), (7, 2949874), (14, 1474937), (17, 1214654), (34, 607327), (53, 389606), (106, 194803), (119, 173522), (238, 86761), (371, 55658), (742, 27829), (901, 22918), (1637, 12614), (1802, 11459), (3274, 6307)]