19911216

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1877}}^1$

素因数の和:1918

約数の個数: 80

約数和(自身を含む): 58683744

約数和(自身を除く): 38772528

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 17, 24, 26, 34, 39, 48, 51, 52, 68, 78, 102, 104, 136, 156, 204, 208, 221, 272, 312, 408, 442, 624, 663, 816, 884, 1326, 1768, 1877, 2652, 3536, 3754, 5304, 5631, 7508, 10608, 11262, 15016, 22524, 24401, 30032, 31909, 45048, 48802, 63818, 73203, 90096, 95727, 97604, 127636, 146406, 191454, 195208, 255272, 292812, 382908, 390416, 414817, 510544, 585624, 765816, 829634, 1171248, 1244451, 1531632, 1659268, 2488902, 3318536, 4977804, 6637072, 9955608, 19911216]

約数ペア:

[(1, 19911216), (2, 9955608), (3, 6637072), (4, 4977804), (6, 3318536), (8, 2488902), (12, 1659268), (13, 1531632), (16, 1244451), (17, 1171248), (24, 829634), (26, 765816), (34, 585624), (39, 510544), (48, 414817), (51, 390416), (52, 382908), (68, 292812), (78, 255272), (102, 195208), (104, 191454), (136, 146406), (156, 127636), (204, 97604), (208, 95727), (221, 90096), (272, 73203), (312, 63818), (408, 48802), (442, 45048), (624, 31909), (663, 30032), (816, 24401), (884, 22524), (1326, 15016), (1768, 11262), (1877, 10608), (2652, 7508), (3536, 5631), (3754, 5304)]