21000455516

素因数分解:

$2^2\times {\mathrm{59}}^1\times {\mathrm{88984981}}^1$

素因数の和:88985044

約数の個数: 12

約数和(自身を含む): 37373692440

約数和(自身を除く): 16373236924

約数列:

[1, 2, 4, 59, 118, 236, 88984981, 177969962, 355939924, 5250113879, 10500227758, 21000455516]

約数ペア:

[(1, 21000455516), (2, 10500227758), (4, 5250113879), (59, 355939924), (118, 177969962), (236, 88984981)]