20509065

素因数分解:

$3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3533}}^1$

素因数の和:3590

約数の個数: 32

約数和(自身を含む): 37319040

約数和(自身を除く): 16809975

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 129, 135, 215, 387, 645, 1161, 1935, 3533, 5805, 10599, 17665, 31797, 52995, 95391, 151919, 158985, 455757, 476955, 759595, 1367271, 2278785, 4101813, 6836355, 20509065]

約数ペア:

[(1, 20509065), (3, 6836355), (5, 4101813), (9, 2278785), (15, 1367271), (27, 759595), (43, 476955), (45, 455757), (129, 158985), (135, 151919), (215, 95391), (387, 52995), (645, 31797), (1161, 17665), (1935, 10599), (3533, 5805)]