291796281

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{317}}^1\times {\mathrm{769}}^1$

素因数の和:1118

約数の個数: 48

約数和(自身を含む): 509308800

約数和(自身を除く): 217512519

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 317, 399, 769, 951, 1197, 2219, 2307, 2853, 5383, 6023, 6657, 6921, 14611, 16149, 18069, 19971, 42161, 43833, 48447, 54207, 102277, 126483, 131499, 243773, 306831, 379449, 731319, 920493, 1706411, 2193957, 4631687, 5119233, 13895061, 15357699, 32421809, 41685183, 97265427, 291796281]

約数ペア:

[(1, 291796281), (3, 97265427), (7, 41685183), (9, 32421809), (19, 15357699), (21, 13895061), (57, 5119233), (63, 4631687), (133, 2193957), (171, 1706411), (317, 920493), (399, 731319), (769, 379449), (951, 306831), (1197, 243773), (2219, 131499), (2307, 126483), (2853, 102277), (5383, 54207), (6023, 48447), (6657, 43833), (6921, 42161), (14611, 19971), (16149, 18069)]