21313328

素因数分解:

$2^4\times {\mathrm{491}}^1\times {\mathrm{2713}}^1$

素因数の和:3212

約数の個数: 20

約数和(自身を含む): 41393928

約数和(自身を除く): 20080600

約数列:

[1, 2, 4, 8, 16, 491, 982, 1964, 2713, 3928, 5426, 7856, 10852, 21704, 43408, 1332083, 2664166, 5328332, 10656664, 21313328]

約数ペア:

[(1, 21313328), (2, 10656664), (4, 5328332), (8, 2664166), (16, 1332083), (491, 43408), (982, 21704), (1964, 10852), (2713, 7856), (3928, 5426)]