20392764

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{2357}}^1$

素因数の和:2474

約数の個数: 48

約数和(自身を含む): 54931968

約数和(自身を除く): 34539204

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 103, 206, 309, 412, 618, 721, 1236, 1442, 2163, 2357, 2884, 4326, 4714, 7071, 8652, 9428, 14142, 16499, 28284, 32998, 49497, 65996, 98994, 197988, 242771, 485542, 728313, 971084, 1456626, 1699397, 2913252, 3398794, 5098191, 6797588, 10196382, 20392764]

約数ペア:

[(1, 20392764), (2, 10196382), (3, 6797588), (4, 5098191), (6, 3398794), (7, 2913252), (12, 1699397), (14, 1456626), (21, 971084), (28, 728313), (42, 485542), (84, 242771), (103, 197988), (206, 98994), (309, 65996), (412, 49497), (618, 32998), (721, 28284), (1236, 16499), (1442, 14142), (2163, 9428), (2357, 8652), (2884, 7071), (4326, 4714)]