18920958

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{463}}^1$

素因数の和:621

約数の個数: 48

約数和(自身を含む): 44432640

約数和(自身を除く): 25511682

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 139, 147, 278, 294, 417, 463, 834, 926, 973, 1389, 1946, 2778, 2919, 3241, 5838, 6482, 6811, 9723, 13622, 19446, 20433, 22687, 40866, 45374, 64357, 68061, 128714, 136122, 193071, 386142, 450499, 900998, 1351497, 2702994, 3153493, 6306986, 9460479, 18920958]

約数ペア:

[(1, 18920958), (2, 9460479), (3, 6306986), (6, 3153493), (7, 2702994), (14, 1351497), (21, 900998), (42, 450499), (49, 386142), (98, 193071), (139, 136122), (147, 128714), (278, 68061), (294, 64357), (417, 45374), (463, 40866), (834, 22687), (926, 20433), (973, 19446), (1389, 13622), (1946, 9723), (2778, 6811), (2919, 6482), (3241, 5838)]