21257482

素因数分解:

$2^1\times {\mathrm{163}}^1\times {\mathrm{197}}^1\times {\mathrm{331}}^1$

素因数の和:693

約数の個数: 16

約数和(自身を含む): 32342112

約数和(自身を除く): 11084630

約数列:

[1, 2, 163, 197, 326, 331, 394, 662, 32111, 53953, 64222, 65207, 107906, 130414, 10628741, 21257482]

約数ペア:

[(1, 21257482), (2, 10628741), (163, 130414), (197, 107906), (326, 65207), (331, 64222), (394, 53953), (662, 32111)]