20402613

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{499}}^1$

素因数の和:582

約数の個数: 48

約数和(自身を含む): 37440000

約数和(自身を除く): 17037387

約数列:

[1, 3, 7, 9, 11, 21, 33, 59, 63, 77, 99, 177, 231, 413, 499, 531, 649, 693, 1239, 1497, 1947, 3493, 3717, 4491, 4543, 5489, 5841, 10479, 13629, 16467, 29441, 31437, 38423, 40887, 49401, 88323, 115269, 206087, 264969, 323851, 345807, 618261, 971553, 1854783, 2266957, 2914659, 6800871, 20402613]

約数ペア:

[(1, 20402613), (3, 6800871), (7, 2914659), (9, 2266957), (11, 1854783), (21, 971553), (33, 618261), (59, 345807), (63, 323851), (77, 264969), (99, 206087), (177, 115269), (231, 88323), (413, 49401), (499, 40887), (531, 38423), (649, 31437), (693, 29441), (1239, 16467), (1497, 13629), (1947, 10479), (3493, 5841), (3717, 5489), (4491, 4543)]