21295388

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{863}}^1$

素因数の和:1097

約数の個数: 24

約数和(自身を含む): 38707200

約数和(自身を除く): 17411812

約数列:

[1, 2, 4, 31, 62, 124, 199, 398, 796, 863, 1726, 3452, 6169, 12338, 24676, 26753, 53506, 107012, 171737, 343474, 686948, 5323847, 10647694, 21295388]

約数ペア:

[(1, 21295388), (2, 10647694), (4, 5323847), (31, 686948), (62, 343474), (124, 171737), (199, 107012), (398, 53506), (796, 26753), (863, 24676), (1726, 12338), (3452, 6169)]