21473872

素因数分解:

$2^4\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1759}}^1$

素因数の和:1883

約数の個数: 40

約数和(自身を含む): 48012800

約数和(自身を除く): 26538928

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 109, 112, 218, 436, 763, 872, 1526, 1744, 1759, 3052, 3518, 6104, 7036, 12208, 12313, 14072, 24626, 28144, 49252, 98504, 191731, 197008, 383462, 766924, 1342117, 1533848, 2684234, 3067696, 5368468, 10736936, 21473872]

約数ペア:

[(1, 21473872), (2, 10736936), (4, 5368468), (7, 3067696), (8, 2684234), (14, 1533848), (16, 1342117), (28, 766924), (56, 383462), (109, 197008), (112, 191731), (218, 98504), (436, 49252), (763, 28144), (872, 24626), (1526, 14072), (1744, 12313), (1759, 12208), (3052, 7036), (3518, 6104)]