18813303397

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{449}}^1\times {\mathrm{6703}}^1$

素因数の和:7225

約数の個数: 32

約数和(自身を含む): 23169024000

約数和(自身を除く): 4355720603

約数列:

[1, 7, 19, 47, 133, 329, 449, 893, 3143, 6251, 6703, 8531, 21103, 46921, 59717, 127357, 147721, 315041, 400957, 891499, 2205287, 2806699, 3009647, 5985779, 21067529, 41900453, 57183293, 141453409, 400283051, 990173863, 2687614771, 18813303397]

約数ペア:

[(1, 18813303397), (7, 2687614771), (19, 990173863), (47, 400283051), (133, 141453409), (329, 57183293), (449, 41900453), (893, 21067529), (3143, 5985779), (6251, 3009647), (6703, 2806699), (8531, 2205287), (21103, 891499), (46921, 400957), (59717, 315041), (127357, 147721)]