28202109

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{251}}^1$

素因数の和:377

約数の個数: 32

約数和(自身を含む): 42223104

約数和(自身を除く): 14020995

約数列:

[1, 3, 13, 39, 43, 67, 129, 201, 251, 559, 753, 871, 1677, 2613, 2881, 3263, 8643, 9789, 10793, 16817, 32379, 37453, 50451, 112359, 140309, 218621, 420927, 655863, 723131, 2169393, 9400703, 28202109]

約数ペア:

[(1, 28202109), (3, 9400703), (13, 2169393), (39, 723131), (43, 655863), (67, 420927), (129, 218621), (201, 140309), (251, 112359), (559, 50451), (753, 37453), (871, 32379), (1677, 16817), (2613, 10793), (2881, 9789), (3263, 8643)]