20152818

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{73}}^1\times {\mathrm{313}}^1$

素因数の和:408

約数の個数: 72

約数和(自身を含む): 51653628

約数和(自身を除く): 31500810

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 73, 98, 126, 146, 147, 219, 294, 313, 438, 441, 511, 626, 657, 882, 939, 1022, 1314, 1533, 1878, 2191, 2817, 3066, 3577, 4382, 4599, 5634, 6573, 7154, 9198, 10731, 13146, 15337, 19719, 21462, 22849, 30674, 32193, 39438, 45698, 46011, 64386, 68547, 92022, 137094, 138033, 159943, 205641, 276066, 319886, 411282, 479829, 959658, 1119601, 1439487, 2239202, 2878974, 3358803, 6717606, 10076409, 20152818]

約数ペア:

[(1, 20152818), (2, 10076409), (3, 6717606), (6, 3358803), (7, 2878974), (9, 2239202), (14, 1439487), (18, 1119601), (21, 959658), (42, 479829), (49, 411282), (63, 319886), (73, 276066), (98, 205641), (126, 159943), (146, 138033), (147, 137094), (219, 92022), (294, 68547), (313, 64386), (438, 46011), (441, 45698), (511, 39438), (626, 32193), (657, 30674), (882, 22849), (939, 21462), (1022, 19719), (1314, 15337), (1533, 13146), (1878, 10731), (2191, 9198), (2817, 7154), (3066, 6573), (3577, 5634), (4382, 4599)]