277804917

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{21391}}^1$

素因数の和:21450

約数の個数: 32

約数和(自身を含む): 455221760

約数和(自身を除く): 177416843

約数列:

[1, 3, 9, 13, 27, 37, 39, 111, 117, 333, 351, 481, 999, 1443, 4329, 12987, 21391, 64173, 192519, 278083, 577557, 791467, 834249, 2374401, 2502747, 7123203, 7508241, 10289071, 21369609, 30867213, 92601639, 277804917]

約数ペア:

[(1, 277804917), (3, 92601639), (9, 30867213), (13, 21369609), (27, 10289071), (37, 7508241), (39, 7123203), (111, 2502747), (117, 2374401), (333, 834249), (351, 791467), (481, 577557), (999, 278083), (1443, 192519), (4329, 64173), (12987, 21391)]