21121107

素因数分解:

$3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{6247}}^1$

素因数の和:6287

約数の個数: 24

約数和(自身を含む): 34189056

約数和(自身を除く): 13067949

約数列:

[1, 3, 7, 21, 23, 49, 69, 147, 161, 483, 1127, 3381, 6247, 18741, 43729, 131187, 143681, 306103, 431043, 918309, 1005767, 3017301, 7040369, 21121107]

約数ペア:

[(1, 21121107), (3, 7040369), (7, 3017301), (21, 1005767), (23, 918309), (49, 431043), (69, 306103), (147, 143681), (161, 131187), (483, 43729), (1127, 18741), (3381, 6247)]