20940988

素因数分解:

$2^2\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{997}}^1$

素因数の和:1149

約数の個数: 24

約数和(自身を含む): 37724400

約数和(自身を除く): 16783412

約数列:

[1, 2, 4, 59, 89, 118, 178, 236, 356, 997, 1994, 3988, 5251, 10502, 21004, 58823, 88733, 117646, 177466, 235292, 354932, 5235247, 10470494, 20940988]

約数ペア:

[(1, 20940988), (2, 10470494), (4, 5235247), (59, 354932), (89, 235292), (118, 177466), (178, 117646), (236, 88733), (356, 58823), (997, 21004), (1994, 10502), (3988, 5251)]