28103985

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{6863}}^1$

素因数の和:6894

約数の個数: 48

約数和(自身を含む): 59963904

約数和(自身を除く): 31859919

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 63, 65, 91, 105, 117, 195, 273, 315, 455, 585, 819, 1365, 4095, 6863, 20589, 34315, 48041, 61767, 89219, 102945, 144123, 240205, 267657, 308835, 432369, 446095, 624533, 720615, 802971, 1338285, 1873599, 2161845, 3122665, 4014855, 5620797, 9367995, 28103985]

約数ペア:

[(1, 28103985), (3, 9367995), (5, 5620797), (7, 4014855), (9, 3122665), (13, 2161845), (15, 1873599), (21, 1338285), (35, 802971), (39, 720615), (45, 624533), (63, 446095), (65, 432369), (91, 308835), (105, 267657), (117, 240205), (195, 144123), (273, 102945), (315, 89219), (455, 61767), (585, 48041), (819, 34315), (1365, 20589), (4095, 6863)]