21613977

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31189}}^1$

素因数の和:31213

約数の個数: 24

約数和(自身を含む): 38925120

約数和(自身を除く): 17311143

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 31189, 93567, 218323, 280701, 343079, 654969, 1029237, 1964907, 2401553, 3087711, 7204659, 21613977]

約数ペア:

[(1, 21613977), (3, 7204659), (7, 3087711), (9, 2401553), (11, 1964907), (21, 1029237), (33, 654969), (63, 343079), (77, 280701), (99, 218323), (231, 93567), (693, 31189)]