20900002

素因数分解:

$2^1\times {\mathrm{131}}^1\times {\mathrm{241}}^1\times {\mathrm{331}}^1$

素因数の和:705

約数の個数: 16

約数和(自身を含む): 31816224

約数和(自身を除く): 10916222

約数列:

[1, 2, 131, 241, 262, 331, 482, 662, 31571, 43361, 63142, 79771, 86722, 159542, 10450001, 20900002]

約数ペア:

[(1, 20900002), (2, 10450001), (131, 159542), (241, 86722), (262, 79771), (331, 63142), (482, 43361), (662, 31571)]