19861317

素因数分解:

$3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{1553}}^1$

素因数の和:1602

約数の個数: 36

約数和(自身を含む): 34545420

約数和(自身を除く): 14684103

約数列:

[1, 3, 7, 9, 21, 29, 49, 63, 87, 147, 203, 261, 441, 609, 1421, 1553, 1827, 4263, 4659, 10871, 12789, 13977, 32613, 45037, 76097, 97839, 135111, 228291, 315259, 405333, 684873, 945777, 2206813, 2837331, 6620439, 19861317]

約数ペア:

[(1, 19861317), (3, 6620439), (7, 2837331), (9, 2206813), (21, 945777), (29, 684873), (49, 405333), (63, 315259), (87, 228291), (147, 135111), (203, 97839), (261, 76097), (441, 45037), (609, 32613), (1421, 13977), (1553, 12789), (1827, 10871), (4263, 4659)]