19895778

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{269}}^1\times {\mathrm{587}}^1$

素因数の和:871

約数の個数: 48

約数和(自身を含む): 49533120

約数和(自身を除く): 29637342

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 269, 538, 587, 807, 1174, 1614, 1761, 1883, 2421, 3522, 3766, 4109, 4842, 5283, 5649, 8218, 10566, 11298, 12327, 16947, 24654, 33894, 36981, 73962, 157903, 315806, 473709, 947418, 1105321, 1421127, 2210642, 2842254, 3315963, 6631926, 9947889, 19895778]

約数ペア:

[(1, 19895778), (2, 9947889), (3, 6631926), (6, 3315963), (7, 2842254), (9, 2210642), (14, 1421127), (18, 1105321), (21, 947418), (42, 473709), (63, 315806), (126, 157903), (269, 73962), (538, 36981), (587, 33894), (807, 24654), (1174, 16947), (1614, 12327), (1761, 11298), (1883, 10566), (2421, 8218), (3522, 5649), (3766, 5283), (4109, 4842)]