20353914

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{491}}^1$

素因数の和:560

約数の個数: 72

約数和(自身を含む): 52498368

約数和(自身を除く): 32144454

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 47, 49, 63, 94, 98, 126, 141, 147, 282, 294, 329, 423, 441, 491, 658, 846, 882, 982, 987, 1473, 1974, 2303, 2946, 2961, 3437, 4419, 4606, 5922, 6874, 6909, 8838, 10311, 13818, 20622, 20727, 23077, 24059, 30933, 41454, 46154, 48118, 61866, 69231, 72177, 138462, 144354, 161539, 207693, 216531, 323078, 415386, 433062, 484617, 969234, 1130773, 1453851, 2261546, 2907702, 3392319, 6784638, 10176957, 20353914]

約数ペア:

[(1, 20353914), (2, 10176957), (3, 6784638), (6, 3392319), (7, 2907702), (9, 2261546), (14, 1453851), (18, 1130773), (21, 969234), (42, 484617), (47, 433062), (49, 415386), (63, 323078), (94, 216531), (98, 207693), (126, 161539), (141, 144354), (147, 138462), (282, 72177), (294, 69231), (329, 61866), (423, 48118), (441, 46154), (491, 41454), (658, 30933), (846, 24059), (882, 23077), (982, 20727), (987, 20622), (1473, 13818), (1974, 10311), (2303, 8838), (2946, 6909), (2961, 6874), (3437, 5922), (4419, 4606)]