81937569

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{587}}^1$

素因数の和:654

約数の個数: 48

約数和(自身を含む): 138636288

約数和(自身を除く): 56698719

約数列:

[1, 3, 7, 17, 21, 23, 51, 69, 119, 161, 289, 357, 391, 483, 587, 867, 1173, 1761, 2023, 2737, 4109, 6069, 6647, 8211, 9979, 12327, 13501, 19941, 29937, 40503, 46529, 69853, 94507, 139587, 169643, 209559, 229517, 283521, 508929, 688551, 1187501, 1606619, 3562503, 3901789, 4819857, 11705367, 27312523, 81937569]

約数ペア:

[(1, 81937569), (3, 27312523), (7, 11705367), (17, 4819857), (21, 3901789), (23, 3562503), (51, 1606619), (69, 1187501), (119, 688551), (161, 508929), (289, 283521), (357, 229517), (391, 209559), (483, 169643), (587, 139587), (867, 94507), (1173, 69853), (1761, 46529), (2023, 40503), (2737, 29937), (4109, 19941), (6069, 13501), (6647, 12327), (8211, 9979)]