18384219

素因数分解:

$3^3\times 7^1\times {\mathrm{211}}^1\times {\mathrm{461}}^1$

素因数の和:688

約数の個数: 32

約数和(自身を含む): 31342080

約数和(自身を除く): 12957861

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 211, 461, 633, 1383, 1477, 1899, 3227, 4149, 4431, 5697, 9681, 12447, 13293, 29043, 39879, 87129, 97271, 291813, 680897, 875439, 2042691, 2626317, 6128073, 18384219]

約数ペア:

[(1, 18384219), (3, 6128073), (7, 2626317), (9, 2042691), (21, 875439), (27, 680897), (63, 291813), (189, 97271), (211, 87129), (461, 39879), (633, 29043), (1383, 13293), (1477, 12447), (1899, 9681), (3227, 5697), (4149, 4431)]