208031901

素因数分解:

$3^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{18379}}^1$

素因数の和:18414

約数の個数: 32

約数和(自身を含む): 352896000

約数和(自身を除く): 144864099

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 343, 539, 1029, 1617, 3773, 11319, 18379, 55137, 128653, 202169, 385959, 606507, 900571, 1415183, 2701713, 4245549, 6303997, 9906281, 18911991, 29718843, 69343967, 208031901]

約数ペア:

[(1, 208031901), (3, 69343967), (7, 29718843), (11, 18911991), (21, 9906281), (33, 6303997), (49, 4245549), (77, 2701713), (147, 1415183), (231, 900571), (343, 606507), (539, 385959), (1029, 202169), (1617, 128653), (3773, 55137), (11319, 18379)]