21805949

素因数分解:

${\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1\times {\mathrm{331}}^1$

素因数の和:508

約数の個数: 16

約数和(自身を含む): 24525504

約数和(自身を除く): 2719555

約数列:

[1, 11, 53, 113, 331, 583, 1243, 3641, 5989, 17543, 37403, 65879, 192973, 411433, 1982359, 21805949]

約数ペア:

[(1, 21805949), (11, 1982359), (53, 411433), (113, 192973), (331, 65879), (583, 37403), (1243, 17543), (3641, 5989)]