21437608

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{30109}}^1$

素因数の和:30204

約数の個数: 16

約数和(自身を含む): 40648500

約数和(自身を除く): 19210892

約数列:

[1, 2, 4, 8, 89, 178, 356, 712, 30109, 60218, 120436, 240872, 2679701, 5359402, 10718804, 21437608]

約数ペア:

[(1, 21437608), (2, 10718804), (4, 5359402), (8, 2679701), (89, 240872), (178, 120436), (356, 60218), (712, 30109)]