19888785

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{613}}^1$

素因数の和:734

約数の個数: 48

約数和(自身を含む): 39846144

約数和(自身を除く): 19957359

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 103, 105, 309, 315, 515, 613, 721, 927, 1545, 1839, 2163, 3065, 3605, 4291, 4635, 5517, 6489, 9195, 10815, 12873, 21455, 27585, 32445, 38619, 63139, 64365, 189417, 193095, 315695, 441973, 568251, 947085, 1325919, 2209865, 2841255, 3977757, 6629595, 19888785]

約数ペア:

[(1, 19888785), (3, 6629595), (5, 3977757), (7, 2841255), (9, 2209865), (15, 1325919), (21, 947085), (35, 568251), (45, 441973), (63, 315695), (103, 193095), (105, 189417), (309, 64365), (315, 63139), (515, 38619), (613, 32445), (721, 27585), (927, 21455), (1545, 12873), (1839, 10815), (2163, 9195), (3065, 6489), (3605, 5517), (4291, 4635)]