18431504

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12659}}^1$

素因数の和:12687

約数の個数: 40

約数和(自身を含む): 43955520

約数和(自身を除く): 25524016

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 12659, 25318, 50636, 88613, 101272, 164567, 177226, 202544, 329134, 354452, 658268, 708904, 1151969, 1316536, 1417808, 2303938, 2633072, 4607876, 9215752, 18431504]

約数ペア:

[(1, 18431504), (2, 9215752), (4, 4607876), (7, 2633072), (8, 2303938), (13, 1417808), (14, 1316536), (16, 1151969), (26, 708904), (28, 658268), (52, 354452), (56, 329134), (91, 202544), (104, 177226), (112, 164567), (182, 101272), (208, 88613), (364, 50636), (728, 25318), (1456, 12659)]