21388038

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{509239}}^1$

素因数の和:509251

約数の個数: 16

約数和(自身を含む): 48887040

約数和(自身を除く): 27499002

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 509239, 1018478, 1527717, 3055434, 3564673, 7129346, 10694019, 21388038]

約数ペア:

[(1, 21388038), (2, 10694019), (3, 7129346), (6, 3564673), (7, 3055434), (14, 1527717), (21, 1018478), (42, 509239)]