20903512

素因数分解:

$2^3\times 7^1\times {\mathrm{283}}^1\times {\mathrm{1319}}^1$

素因数の和:1615

約数の個数: 32

約数和(自身を含む): 44985600

約数和(自身を除く): 24082088

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 283, 566, 1132, 1319, 1981, 2264, 2638, 3962, 5276, 7924, 9233, 10552, 15848, 18466, 36932, 73864, 373277, 746554, 1493108, 2612939, 2986216, 5225878, 10451756, 20903512]

約数ペア:

[(1, 20903512), (2, 10451756), (4, 5225878), (7, 2986216), (8, 2612939), (14, 1493108), (28, 746554), (56, 373277), (283, 73864), (566, 36932), (1132, 18466), (1319, 15848), (1981, 10552), (2264, 9233), (2638, 7924), (3962, 5276)]