21745402

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{25463}}^1$

素因数の和:25533

約数の個数: 16

約数和(自身を含む): 37890432

約数和(自身を除く): 16145030

約数列:

[1, 2, 7, 14, 61, 122, 427, 854, 25463, 50926, 178241, 356482, 1553243, 3106486, 10872701, 21745402]

約数ペア:

[(1, 21745402), (2, 10872701), (7, 3106486), (14, 1553243), (61, 356482), (122, 178241), (427, 50926), (854, 25463)]