27812589

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{647}}^1$

素因数の和:769

約数の個数: 32

約数和(自身を含む): 44789760

約数和(自身を除く): 16977171

約数列:

[1, 3, 7, 21, 23, 69, 89, 161, 267, 483, 623, 647, 1869, 1941, 2047, 4529, 6141, 13587, 14329, 14881, 42987, 44643, 57583, 104167, 172749, 312501, 403081, 1209243, 1324409, 3973227, 9270863, 27812589]

約数ペア:

[(1, 27812589), (3, 9270863), (7, 3973227), (21, 1324409), (23, 1209243), (69, 403081), (89, 312501), (161, 172749), (267, 104167), (483, 57583), (623, 44643), (647, 42987), (1869, 14881), (1941, 14329), (2047, 13587), (4529, 6141)]