19256013

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 33246720

約数和(自身を除く): 13990707

約数列:

[1, 3, 7, 9, 21, 53, 63, 73, 79, 159, 219, 237, 371, 477, 511, 553, 657, 711, 1113, 1533, 1659, 3339, 3869, 4187, 4599, 4977, 5767, 11607, 12561, 17301, 27083, 29309, 34821, 37683, 40369, 51903, 81249, 87927, 121107, 243747, 263781, 305651, 363321, 916953, 2139557, 2750859, 6418671, 19256013]

約数ペア:

[(1, 19256013), (3, 6418671), (7, 2750859), (9, 2139557), (21, 916953), (53, 363321), (63, 305651), (73, 263781), (79, 243747), (159, 121107), (219, 87927), (237, 81249), (371, 51903), (477, 40369), (511, 37683), (553, 34821), (657, 29309), (711, 27083), (1113, 17301), (1533, 12561), (1659, 11607), (3339, 5767), (3869, 4977), (4187, 4599)]