399551439

素因数分解:

$3^1\times 7^3\times {\mathrm{97}}^1\times {\mathrm{4003}}^1$

素因数の和:4124

約数の個数: 32

約数和(自身を含む): 627827200

約数和(自身を除く): 228275761

約数列:

[1, 3, 7, 21, 49, 97, 147, 291, 343, 679, 1029, 2037, 4003, 4753, 12009, 14259, 28021, 33271, 84063, 99813, 196147, 388291, 588441, 1164873, 1373029, 2718037, 4119087, 8154111, 19026259, 57078777, 133183813, 399551439]

約数ペア:

[(1, 399551439), (3, 133183813), (7, 57078777), (21, 19026259), (49, 8154111), (97, 4119087), (147, 2718037), (291, 1373029), (343, 1164873), (679, 588441), (1029, 388291), (2037, 196147), (4003, 99813), (4753, 84063), (12009, 33271), (14259, 28021)]