18928395

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{227}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 35212320

約数和(自身を除く): 16283925

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 109, 153, 227, 255, 327, 545, 681, 765, 981, 1135, 1635, 1853, 2043, 3405, 3859, 4905, 5559, 9265, 10215, 11577, 16677, 19295, 24743, 27795, 34731, 57885, 74229, 83385, 123715, 173655, 222687, 371145, 420631, 1113435, 1261893, 2103155, 3785679, 6309465, 18928395]

約数ペア:

[(1, 18928395), (3, 6309465), (5, 3785679), (9, 2103155), (15, 1261893), (17, 1113435), (45, 420631), (51, 371145), (85, 222687), (109, 173655), (153, 123715), (227, 83385), (255, 74229), (327, 57885), (545, 34731), (681, 27795), (765, 24743), (981, 19295), (1135, 16677), (1635, 11577), (1853, 10215), (2043, 9265), (3405, 5559), (3859, 4905)]