21967428

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{2539}}^1$

素因数の和:2656

約数の個数: 48

約数和(自身を含む): 59171840

約数和(自身を除く): 37204412

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 103, 206, 309, 412, 618, 721, 1236, 1442, 2163, 2539, 2884, 4326, 5078, 7617, 8652, 10156, 15234, 17773, 30468, 35546, 53319, 71092, 106638, 213276, 261517, 523034, 784551, 1046068, 1569102, 1830619, 3138204, 3661238, 5491857, 7322476, 10983714, 21967428]

約数ペア:

[(1, 21967428), (2, 10983714), (3, 7322476), (4, 5491857), (6, 3661238), (7, 3138204), (12, 1830619), (14, 1569102), (21, 1046068), (28, 784551), (42, 523034), (84, 261517), (103, 213276), (206, 106638), (309, 71092), (412, 53319), (618, 35546), (721, 30468), (1236, 17773), (1442, 15234), (2163, 10156), (2539, 8652), (2884, 7617), (4326, 5078)]