21113571

素因数分解:

$3^1\times {\mathrm{73}}^1\times {\mathrm{229}}^1\times {\mathrm{421}}^1$

素因数の和:726

約数の個数: 16

約数和(自身を含む): 28729760

約数和(自身を除く): 7616189

約数列:

[1, 3, 73, 219, 229, 421, 687, 1263, 16717, 30733, 50151, 92199, 96409, 289227, 7037857, 21113571]

約数ペア:

[(1, 21113571), (3, 7037857), (73, 289227), (219, 96409), (229, 92199), (421, 50151), (687, 30733), (1263, 16717)]