20911084

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{151}}^1\times {\mathrm{389}}^1$

素因数の和:633

約数の個数: 24

約数和(自身を含む): 37346400

約数和(自身を除く): 16435316

約数列:

[1, 2, 4, 89, 151, 178, 302, 356, 389, 604, 778, 1556, 13439, 26878, 34621, 53756, 58739, 69242, 117478, 138484, 234956, 5227771, 10455542, 20911084]

約数ペア:

[(1, 20911084), (2, 10455542), (4, 5227771), (89, 234956), (151, 138484), (178, 117478), (302, 69242), (356, 58739), (389, 53756), (604, 34621), (778, 26878), (1556, 13439)]