16988985

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{257}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 32117904

約数和(自身を除く): 15128919

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 113, 117, 195, 257, 339, 565, 585, 771, 1017, 1285, 1469, 1695, 2313, 3341, 3855, 4407, 5085, 7345, 10023, 11565, 13221, 16705, 22035, 29041, 30069, 50115, 66105, 87123, 145205, 150345, 261369, 377533, 435615, 1132599, 1306845, 1887665, 3397797, 5662995, 16988985]

約数ペア:

[(1, 16988985), (3, 5662995), (5, 3397797), (9, 1887665), (13, 1306845), (15, 1132599), (39, 435615), (45, 377533), (65, 261369), (113, 150345), (117, 145205), (195, 87123), (257, 66105), (339, 50115), (565, 30069), (585, 29041), (771, 22035), (1017, 16705), (1285, 13221), (1469, 11565), (1695, 10023), (2313, 7345), (3341, 5085), (3855, 4407)]