19903065

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2083}}^1$

素因数の和:2118

約数の個数: 48

約数和(自身を含む): 39912768

約数和(自身を除く): 20009703

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 49, 65, 91, 105, 147, 195, 245, 273, 455, 637, 735, 1365, 1911, 2083, 3185, 6249, 9555, 10415, 14581, 27079, 31245, 43743, 72905, 81237, 102067, 135395, 189553, 218715, 306201, 406185, 510335, 568659, 947765, 1326871, 1531005, 2843295, 3980613, 6634355, 19903065]

約数ペア:

[(1, 19903065), (3, 6634355), (5, 3980613), (7, 2843295), (13, 1531005), (15, 1326871), (21, 947765), (35, 568659), (39, 510335), (49, 406185), (65, 306201), (91, 218715), (105, 189553), (147, 135395), (195, 102067), (245, 81237), (273, 72905), (455, 43743), (637, 31245), (735, 27079), (1365, 14581), (1911, 10415), (2083, 9555), (3185, 6249)]