18591885

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{521}}^1$

素因数の和:606

約数の個数: 48

約数和(自身を含む): 35341488

約数和(自身を除く): 16749603

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 61, 65, 117, 183, 195, 305, 521, 549, 585, 793, 915, 1563, 2379, 2605, 2745, 3965, 4689, 6773, 7137, 7815, 11895, 20319, 23445, 31781, 33865, 35685, 60957, 95343, 101595, 158905, 286029, 304785, 413153, 476715, 1239459, 1430145, 2065765, 3718377, 6197295, 18591885]

約数ペア:

[(1, 18591885), (3, 6197295), (5, 3718377), (9, 2065765), (13, 1430145), (15, 1239459), (39, 476715), (45, 413153), (61, 304785), (65, 286029), (117, 158905), (183, 101595), (195, 95343), (305, 60957), (521, 35685), (549, 33865), (585, 31781), (793, 23445), (915, 20319), (1563, 11895), (2379, 7815), (2605, 7137), (2745, 6773), (3965, 4689)]