21427402

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{569}}^1\times {\mathrm{991}}^1$

素因数の和:1581

約数の個数: 16

約数和(自身を含む): 33926400

約数和(自身を除く): 12498998

約数列:

[1, 2, 19, 38, 569, 991, 1138, 1982, 10811, 18829, 21622, 37658, 563879, 1127758, 10713701, 21427402]

約数ペア:

[(1, 21427402), (2, 10713701), (19, 1127758), (38, 563879), (569, 37658), (991, 21622), (1138, 18829), (1982, 10811)]