19417905

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1747}}^1$

素因数の和:1790

約数の個数: 48

約数和(自身を含む): 38176320

約数和(自身を除く): 18758415

約数列:

[1, 3, 5, 9, 13, 15, 19, 39, 45, 57, 65, 95, 117, 171, 195, 247, 285, 585, 741, 855, 1235, 1747, 2223, 3705, 5241, 8735, 11115, 15723, 22711, 26205, 33193, 68133, 78615, 99579, 113555, 165965, 204399, 298737, 340665, 431509, 497895, 1021995, 1294527, 1493685, 2157545, 3883581, 6472635, 19417905]

約数ペア:

[(1, 19417905), (3, 6472635), (5, 3883581), (9, 2157545), (13, 1493685), (15, 1294527), (19, 1021995), (39, 497895), (45, 431509), (57, 340665), (65, 298737), (95, 204399), (117, 165965), (171, 113555), (195, 99579), (247, 78615), (285, 68133), (585, 33193), (741, 26205), (855, 22711), (1235, 15723), (1747, 11115), (2223, 8735), (3705, 5241)]