28031157

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:263

約数の個数: 64

約数和(自身を含む): 52684800

約数和(自身を除く): 24653643

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 97, 99, 139, 189, 231, 291, 297, 417, 679, 693, 873, 973, 1067, 1251, 1529, 2037, 2079, 2619, 2919, 3201, 3753, 4587, 6111, 7469, 8757, 9603, 10703, 13483, 13761, 18333, 22407, 26271, 28809, 32109, 40449, 41283, 67221, 94381, 96327, 121347, 148313, 201663, 283143, 288981, 364041, 444939, 849429, 1038191, 1334817, 2548287, 3114573, 4004451, 9343719, 28031157]

約数ペア:

[(1, 28031157), (3, 9343719), (7, 4004451), (9, 3114573), (11, 2548287), (21, 1334817), (27, 1038191), (33, 849429), (63, 444939), (77, 364041), (97, 288981), (99, 283143), (139, 201663), (189, 148313), (231, 121347), (291, 96327), (297, 94381), (417, 67221), (679, 41283), (693, 40449), (873, 32109), (973, 28809), (1067, 26271), (1251, 22407), (1529, 18333), (2037, 13761), (2079, 13483), (2619, 10703), (2919, 9603), (3201, 8757), (3753, 7469), (4587, 6111)]