21811911

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{367}}^1\times {\mathrm{1801}}^1$

素因数の和:2182

約数の個数: 16

約数和(自身を含む): 31830528

約数和(自身を除く): 10018617

約数列:

[1, 3, 11, 33, 367, 1101, 1801, 4037, 5403, 12111, 19811, 59433, 660967, 1982901, 7270637, 21811911]

約数ペア:

[(1, 21811911), (3, 7270637), (11, 1982901), (33, 660967), (367, 59433), (1101, 19811), (1801, 12111), (4037, 5403)]