18737649

素因数分解:

$3^4\times 7^2\times {\mathrm{4721}}^1$

素因数の和:4747

約数の個数: 30

約数和(自身を含む): 32567634

約数和(自身を除く): 13829985

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 4721, 14163, 33047, 42489, 99141, 127467, 231329, 297423, 382401, 693987, 892269, 2081961, 2676807, 6245883, 18737649]

約数ペア:

[(1, 18737649), (3, 6245883), (7, 2676807), (9, 2081961), (21, 892269), (27, 693987), (49, 382401), (63, 297423), (81, 231329), (147, 127467), (189, 99141), (441, 42489), (567, 33047), (1323, 14163), (3969, 4721)]