27881763

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:164

約数の個数: 64

約数和(自身を含む): 48771072

約数和(自身を除く): 20889309

約数列:

[1, 3, 7, 13, 21, 39, 41, 47, 53, 91, 123, 141, 159, 273, 287, 329, 371, 533, 611, 689, 861, 987, 1113, 1599, 1833, 1927, 2067, 2173, 2491, 3731, 4277, 4823, 5781, 6519, 7473, 11193, 12831, 13489, 14469, 15211, 17437, 25051, 28249, 32383, 40467, 45633, 52311, 75153, 84747, 97149, 102131, 175357, 197743, 226681, 306393, 526071, 593229, 680043, 714917, 1327703, 2144751, 3983109, 9293921, 27881763]

約数ペア:

[(1, 27881763), (3, 9293921), (7, 3983109), (13, 2144751), (21, 1327703), (39, 714917), (41, 680043), (47, 593229), (53, 526071), (91, 306393), (123, 226681), (141, 197743), (159, 175357), (273, 102131), (287, 97149), (329, 84747), (371, 75153), (533, 52311), (611, 45633), (689, 40467), (861, 32383), (987, 28249), (1113, 25051), (1599, 17437), (1833, 15211), (1927, 14469), (2067, 13489), (2173, 12831), (2491, 11193), (3731, 7473), (4277, 6519), (4823, 5781)]