19874514

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1$

素因数の和:255

約数の個数: 64

約数和(自身を含む): 45619200

約数和(自身を除く): 25744686

約数列:

[1, 2, 3, 6, 11, 22, 33, 43, 47, 66, 86, 94, 129, 141, 149, 258, 282, 298, 447, 473, 517, 894, 946, 1034, 1419, 1551, 1639, 2021, 2838, 3102, 3278, 4042, 4917, 6063, 6407, 7003, 9834, 12126, 12814, 14006, 19221, 21009, 22231, 38442, 42018, 44462, 66693, 70477, 77033, 133386, 140954, 154066, 211431, 231099, 301129, 422862, 462198, 602258, 903387, 1806774, 3312419, 6624838, 9937257, 19874514]

約数ペア:

[(1, 19874514), (2, 9937257), (3, 6624838), (6, 3312419), (11, 1806774), (22, 903387), (33, 602258), (43, 462198), (47, 422862), (66, 301129), (86, 231099), (94, 211431), (129, 154066), (141, 140954), (149, 133386), (258, 77033), (282, 70477), (298, 66693), (447, 44462), (473, 42018), (517, 38442), (894, 22231), (946, 21009), (1034, 19221), (1419, 14006), (1551, 12814), (1639, 12126), (2021, 9834), (2838, 7003), (3102, 6407), (3278, 6063), (4042, 4917)]