21461986

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{193}}^1$

素因数の和:275

約数の個数: 48

約数和(自身を含む): 40898304

約数和(自身を除く): 19436318

約数列:

[1, 2, 7, 13, 14, 26, 47, 91, 94, 169, 182, 193, 329, 338, 386, 611, 658, 1183, 1222, 1351, 2366, 2509, 2702, 4277, 5018, 7943, 8554, 9071, 15886, 17563, 18142, 32617, 35126, 55601, 63497, 65234, 111202, 117923, 126994, 228319, 235846, 456638, 825461, 1532999, 1650922, 3065998, 10730993, 21461986]

約数ペア:

[(1, 21461986), (2, 10730993), (7, 3065998), (13, 1650922), (14, 1532999), (26, 825461), (47, 456638), (91, 235846), (94, 228319), (169, 126994), (182, 117923), (193, 111202), (329, 65234), (338, 63497), (386, 55601), (611, 35126), (658, 32617), (1183, 18142), (1222, 17563), (1351, 15886), (2366, 9071), (2509, 8554), (2702, 7943), (4277, 5018)]