9993988

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{419}}^1$

素因数の和:579

約数の個数: 24

約数和(自身を含む): 17992800

約数和(自身を除く): 7998812

約数列:

[1, 2, 4, 67, 89, 134, 178, 268, 356, 419, 838, 1676, 5963, 11926, 23852, 28073, 37291, 56146, 74582, 112292, 149164, 2498497, 4996994, 9993988]

約数ペア:

[(1, 9993988), (2, 4996994), (4, 2498497), (67, 149164), (89, 112292), (134, 74582), (178, 56146), (268, 37291), (356, 28073), (419, 23852), (838, 11926), (1676, 5963)]