281234577

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{2503}}^1$

素因数の和:2629

約数の個数: 32

約数和(自身を含む): 419550208

約数和(自身を除く): 138315631

約数列:

[1, 3, 13, 39, 43, 67, 129, 201, 559, 871, 1677, 2503, 2613, 2881, 7509, 8643, 32539, 37453, 97617, 107629, 112359, 167701, 322887, 503103, 1399177, 2180113, 4197531, 6540339, 7211143, 21633429, 93744859, 281234577]

約数ペア:

[(1, 281234577), (3, 93744859), (13, 21633429), (39, 7211143), (43, 6540339), (67, 4197531), (129, 2180113), (201, 1399177), (559, 503103), (871, 322887), (1677, 167701), (2503, 112359), (2613, 107629), (2881, 97617), (7509, 37453), (8643, 32539)]