21408416

素因数分解:

$2^5\times {\mathrm{89}}^1\times {\mathrm{7517}}^1$

素因数の和:7616

約数の個数: 24

約数和(自身を含む): 42627060

約数和(自身を除く): 21218644

約数列:

[1, 2, 4, 8, 16, 32, 89, 178, 356, 712, 1424, 2848, 7517, 15034, 30068, 60136, 120272, 240544, 669013, 1338026, 2676052, 5352104, 10704208, 21408416]

約数ペア:

[(1, 21408416), (2, 10704208), (4, 5352104), (8, 2676052), (16, 1338026), (32, 669013), (89, 240544), (178, 120272), (356, 60136), (712, 30068), (1424, 15034), (2848, 7517)]