18742347

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{349}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 32104800

約数和(自身を除く): 13362453

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 81, 117, 153, 221, 243, 349, 351, 459, 663, 1047, 1053, 1377, 1989, 3141, 3159, 4131, 4537, 5933, 5967, 9423, 13611, 17799, 17901, 28269, 40833, 53397, 53703, 77129, 84807, 122499, 160191, 231387, 367497, 480573, 694161, 1102491, 1441719, 2082483, 6247449, 18742347]

約数ペア:

[(1, 18742347), (3, 6247449), (9, 2082483), (13, 1441719), (17, 1102491), (27, 694161), (39, 480573), (51, 367497), (81, 231387), (117, 160191), (153, 122499), (221, 84807), (243, 77129), (349, 53703), (351, 53397), (459, 40833), (663, 28269), (1047, 17901), (1053, 17799), (1377, 13611), (1989, 9423), (3141, 5967), (3159, 5933), (4131, 4537)]